without being able to differentiate between chromosomes and homologous chromosomes in a light microscope, how can you distinguish between metaphase 1 and metaphase 2?

Answers

Answer 1

The primary distinction between metaphases 1 and 2 is that while in metaphase 1, homologous pairs of chromosomes are joined at the equator, in metaphase 2, a single chromosome is attached.

The cell's chromosomes condense and move toward one another, aligning in the centre of the dividing cell, and the cell's nucleus disintegrates during metaphase. The chromosomes may now be identified when viewed under a microscope. When the chromosomes arrange themselves along the metaphase plate with the aid of the spindle fibres, the cell is in metaphase II. The two kinetochores found in each chromosome's centromere are now joined by the spindle fibres.

Thus, it is clear that Metaphases 1 and 2 are distinguished primarily by the joining of homologous pairs of chromosomes at the equator in metaphase 1, as opposed to the attachment of a single chromosome in metaphase 2.

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Related Questions

How could you determine the rate of a cerain organism

Answers

Specific growth rate is used to determine the rate of a certain organism.

The specific growth rate is the rate of biomass production per unit of initial biomass concentration, or the amount of biomass produced divided by (initial biomass x time taken).

Take the current value and subtract it from the previous value to determine the growth rate. To get a percentage representation of the rate of growth, multiply this difference by 100 and divide it by the previous value.

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the microscope image and model show a cell during the telophase stage of mitosis.

At the end of this stage, how will the cell be prepared to continue through the cell cycle to produce two daughter cells?

OA. The chromatin will condense into eight chromosomes.

O B. Each side of the cell will have two copies of each chromosome.

OC. The nuclear envelopes will surround and separate each chromosome.

OD. A nuclear envelope will surround each cluster of identical chromosomes.​

the microscope image and model show a cell during the telophase stage of mitosis.At the end of this stage,

Answers

Answer:D seems to be the most probable answer.

Explanation:

A:chromatin relaxes after cell cycle so ruled out

B:each side will have a single copy

C:nuclear envelope surrounds the whole genetic material, not individual chromosomes

At the end of the telophase stage of mitosis, a nuclear envelope will surround each cluster of identical chromosomes.​ Option D is correct.

During the telophase stage of mitosis, the cell undergoes certain changes in preparation for the production of two daughter cells. These changes include the following:

1. The chromatin, which is the loosely packed form of DNA, begins to condense into distinct chromosomes. This condensation allows for easier distribution of the genetic material during cell division.

2. Each side of the cell will have two copies of each chromosome. This is because during the earlier stages of mitosis, the chromosomes duplicated themselves, resulting in two identical copies of each chromosome. In telophase, these copies are segregated and will eventually be distributed to the daughter cells.

3. The nuclear envelope, which temporarily disappeared during earlier stages of mitosis, reforms around each cluster of identical chromosomes. This separation of chromosomes by nuclear envelopes ensures that the genetic material is contained within each daughter cell and prevents mixing.

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what do chains of amino acids makes

Answers

Answer:

they form protien

Explanation:

Answer:they form protein

Explanation:

The amino acid contains polypeptide chain by polymerization to form protein

what is Biology???????​

Answers

Answer:

Biology is the study of life. The word "biology" is derived from the Greek words "bios" (meaning life) and "logos" (meaning "study"). In general, biologists study the structure, function, growth, origin, evolution and distribution of living organisms.

Explanation:

I HOPE ITS HELP YOU

Answer:

Biology.

Explanation:

Bio means life and ology means to study so combine those together and you have this.

Biology = The study of life.

How does earths rotation help to maintain its temperature? Please help!!!

Answers

Answer:

Earth returns an equal amount of energy back to space by reflecting some incoming light and by radiating heat (thermal infrared energy). Earth's average surface temperature is maintained by two large, opposing energy fluxes between the atmosphere and the ground (right)—the greenhouse effect.

What is a practical marine mammal example for the application of molecular taxonomy?

Answers

A practical marine mammal example for the application of molecular taxonomy is the differentiation of subspecies or populations within a species using genetic data.

By analyzing genetic markers such as mitochondrial DNA or microsatellites, researchers can identify unique genetic signatures that correspond to different populations or subspecies. This information can be used to inform management and conservation strategies, such as identifying priority areas for protection or assessing the genetic diversity and connectivity of different populations.

Molecular taxonomy can help resolve taxonomic uncertainties or discrepancies, such as the classification of certain dolphin species, which may be difficult to distinguish based on morphology alone. By combining genetic and morphological data, researchers can develop a more accurate and comprehensive understanding of the diversity and relationships between different marine mammal species and populations.

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what adaptations might have evolved in the fruit or seeds of plants for seed dispersal using abiotic vectors such as wind

Answers

Plants that rely on wind for seed dispersal have evolved a number of adaptations to ensure their seeds are carried as far away from the parent plant as possible.

These adaptations include lightweight seeds, such as those with feathery or fluffy structures that catch the wind and act like parachutes to carry the seeds away. Some seeds have wings that allow them to glide through the air like tiny airplanes. Other plants have capsules that burst open when the seeds are mature, releasing the seeds into the wind.

Some plants have structures that twist and turn in the wind, flinging the seeds away from the parent plant. These adaptations allow plants to colonize new areas and increase genetic diversity, which is important for their survival.

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During the development of human offspring, which of the following begins to hear and see?
fetus
embryo
blastocyst
zygote

Answers

Answer:

fetus

Explanation:

i just did the test

During the development of human offspring, the fetus begins to hear and see that is in the first option as the fetus is the stage of human development that occurs after the embryonic stage.

What is a fetus?

During this fetal stage, the structures that began to form during the embryonic stage continue to grow and develop, and the fetus begins to hear and see during this stage, as the ears and eyes are formed and become functional, and it also develops many other organs and systems during this stage, including the respiratory, digestive, etc. As a result, the fetus is the stage at which more complex structures develop, and it later develops into the fully mature baby.

As a result, the fetus begins to hear and see during the development of human offspring, which is in the first option because the fetus is the stage of human development that occurs after the embryonic stage. 

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put the following stages of the cell cycle in order:G2,S,G1,M​

Answers

Answer:

G1, S, G2, M

Explanation:

The cell cycle is a four-stage process in which the cell increases in size (gap 1, or G1, stage), copies its DNA (synthesis, or S, stage), prepares to divide (gap 2, or G2, stage), and divides (mitosis, or M, stage).

Benita wants to know how to identify heartworms. Which statement will help Benita?

Answers

Answer: C. They can be six to twelve inches in length.

Explanation: I got it correct on edmentum

Answer:

c. they can be six to twelve inches in length

Explanation:

got it right on the test in edmentum

in terms of ecological impact, shrimp farming is less destructive than shrimp trawling. true false

Answers

In terms of ecological impact, shrimp farming is less destructive than shrimp trawling - False

The primary goal of commercial shrimp fisheries is to maximise their target catch in order to maximise profit. Using trawl nets, commercial shrimp fisheries achieve this purpose. Trawling is a particularly damaging type of fishing that, regrettably, ignores the effects on the environment. Trawling with beam or otter trawls increases the amount of shrimp that can be caught, but it also increases the amount of by-catch that can be landed. By a wide margin, by-catch outweighs shrimp and other target species that are collected in trawls. Most by-catch, which includes young fish, non-commercial fish, and benthic debris, is landed and thrown back into the water dead. By-catch is then dumped into the water, where it contaminates it and kills fish.

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For this question, go to the Magnetosphere sub-section (of the Jupiter section) of The Story (Links to an external site.), and scroll down to the picture of Jupiter (and its magnetic field) that has clickable "hotspots" on it. What happens when charged particles crash into Jupiter's atmosphere from the polar portions of Jupiter's magnetosphere? Group of answer choices Jupiter's atmosphere gets very strongly heated, causing it nuclear fusion to begin. Jupiters' gravitational attraction increased, altering the orbits of its moons. Jupiter's atmosphere gets temporarily blown away, revealing the deep interior underneath Glowing auroras form in Jupiter's atmosphere

Answers

When charged particles crash into Jupiter's atmosphere then c. Jupiter's atmosphere gets temporarily blown away, revealing the deep interior underneath Glowing auroras form in Jupiter's atmosphere

The polar portions of Jupiter's atmosphere experience a brief disturbance as charged particles from Jupiter's magnetosphere collide with them. As a result of these impacts, atmospheric gases are stimulated and begin to radiate light, a phenomenon known as an aurora. Therefore, bright auroras start to develop in Jupiter's atmosphere.

Additionally, the atmosphere may be momentarily blasted away by the impact of charged particles, exposing the deeper layers of Jupiter's atmosphere and enabling researchers to learn more about its makeup and characteristics. It is crucial to remember that the atmosphere will eventually return to equilibrium after this brief perturbation.

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Complete Question:

What happens when charged particles crash into Jupiter's atmosphere from the polar portions of Jupiter's magnetosphere?

a. Jupiter's atmosphere gets very strongly heated, causing it nuclear fusion to begin.

b. Jupiters' gravitational attraction increased, altering the orbits of its moons.

c. Jupiter's atmosphere gets temporarily blown away, revealing the deep interior underneath Glowing auroras form in Jupiter's atmosphere

laaaast question :)
heeeeeeeeeeelp plz

laaaast question :) heeeeeeeeeeelp plz

Answers

Answer:

Explanation:e

What type of Recourses are derived from nonliving things of the environment like rocks minerals mountains gases etc.

Answers

Answer:

Inorganic renewable resources come from non-living things such as the water, sun, and wind. Non-renewable resources cannot be easily replaced once they are destroyed. Examples of these resources include fossil fuels such as coal, petroleum, oil, and natural gas.

hope this answered your question!

The resources derived from nonliving things in the environment, such as rocks, minerals, mountains, and gases, are known as abiotic resources or nonrenewable resources. These resources are derived from natural sources.

What is a Resource?

A resource is a physical material that people value and need, including air, water, and land. Resources are classified into two types: renewable and nonrenewable. Timber, wind, and solar power are examples of renewable resources, whereas coal and natural gas are examples of non-renewable resources.

Non-renewable resources include gases like nitrogen, oxygen, and carbon dioxide, which are very useful for the atmosphere and for life on Earth. Rocks and minerals are the foundation materials for iron ore, copper, gold, and diamonds. They are used in construction, manufacturing, and the production of various goods. Mountains provide resources like coal, oil, and natural gas, which are crucial for energy production.

Abiotic resources are available in very particular amounts and are non-renewable and their extraction causes various environmental impacts. So, the conservation and management of these resources are helpful in the maintenance of the environment.

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Clumped spacing of individuals within a population may be the result of an _________________ distribution of resources or it may be the result of the ________________ interactions of a species.

Answers

Clumped spacing of individuals within a population may be the result of an uneven distribution of resources or it may be the result of the social  interactions of a species.

Clumped spacing of individuals within a population can arise from two main factors: uneven resource distribution and social interactions. Firstly, an uneven distribution of resources, such as food, water, or shelter, can lead to clumping. Resources tend to be localized, and individuals congregate in areas where these resources are abundant. This clumping pattern allows individuals to maximize their access to vital resources and increase their chances of survival and reproduction.

Secondly, social interactions within a species can also contribute to clumped spacing. Many species exhibit social behaviors and form groups or colonies. These social structures can create clumped distributions as individuals prefer to be in close proximity to others of their species. Social interactions may include cooperative hunting, protection from predators, or sharing information. Grouping together can provide benefits like increased defense, improved mating opportunities, or better communication.

Both resource distribution and social interactions play significant roles in shaping the spatial distribution of individuals within a population. The relative importance of these factors varies among species and can even co-occur, leading to complex patterns of clumped spacing in nature.

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The alantic ocean grows in size due to a

Answers

It has grown in size due to global warming

Crust along the Mid-Atlantic Ridge.

What kind of solar energy reaches Earth after traveling through space?

Answers

Explanation:

All of the energy from the Sun that reaches the Earth arrives as solar radiation, part of a large collection of energy called the electromagnetic radiation spectrum. Solar radiation includes visible light, ultraviolet light, infrared, radio waves, X-rays, and gamma rays. Radiation is one way to transfer heat.

Answer:

solar radiation I'm sure

state how transcription regulation in eukaryotes is similar to and different from regulation in bacteria and archaea

Answers

The similarity between transcription regulation in eukaryotes and bacteria/archaea is transcription initiation is the most regulated step in both bacteria/archaea and eukaryotes. The difference between transcription regulation in eukaryotes and bacteria/archaea is transcription initiation complexes are more complicated and involve more factors compared to bacteria/archaea.

Similarities between transcription regulation in eukaryotes and bacteria/archaea are

Transcription initiation is the most regulated step in both bacteria/archaea and eukaryotes, including gene expression regulation. A group of transcription factors works together with RNA polymerase to promote the formation of transcription initiation complexes.The core promoter controls transcription initiation in both bacteria/archaea and eukaryotes.The mechanisms of silencing transcription are identical to those of bacteria/archaea in eukaryotes as well.

Differences between transcription regulation in eukaryotes and bacteria/archaea are

In eukaryotes, transcription initiation complexes are more complicated and involve more factors compared to bacteria/archaea.In eukaryotes, DNA sequences have a significant role in transcription regulation, while in bacteria/archaea, DNA sequences play only a minor role.In eukaryotes, a broad range of transcription factors (some with no bacterial/archaeal equivalents) interacts with RNA polymerase. On the other hand, in bacteria/archaea, just a few transcription factors, such as sigma factors, interact with RNA polymerase.The regulation of RNA processing and mRNA transport is much more complex in eukaryotes compared to bacteria/archaea. While bacteria and archaea have no specialized transport systems, mRNA in eukaryotes undergoes extensive modification and is then transported out of the nucleus via a nuclear pore complex (NPC).The mechanism of attenuation, which controls transcription in bacteria/archaea, is not found in eukaryotes.

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using the example of the peppered moth, explain how environmental change applies selective pressure within the moth population. quixlet

Answers

The peppered moth (Biston betularia) is a classic example of how environmental change can apply selective pressure within a population, leading to evolutionary changes.

Prior to the industrial revolution, the peppered moth population in England consisted mostly of light-colored moths that blended well with the lichen-covered tree trunks, which served as their natural camouflage. However, as industrialization progressed, the air pollution resulted in the darkening of the tree trunks due to soot deposition.

This change in the environment created selective pressure on the moth population. The darkened tree trunks made the light-colored moths more conspicuous to predators, such as birds, leading to higher predation rates. On the other hand, the darker-colored moths had a better chance of blending in with the darkened tree trunks, resulting in lower predation rates. As a result, the frequency of dark-colored moths increased over time, while the frequency of light-colored moths decreased.

This is an example of natural selection, where the environmental change of air pollution created selective pressure that favored the survival and reproduction of individuals with traits that conferred better camouflage against the darkened tree trunks. This led to a change in the allele frequency within the moth population over time, demonstrating the process of evolution by natural selection in action.

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what is the term for the lowest part of the exterior of the heart

Answers

The term for the lowest part of the exterior of the heart is the "apex." The apex is the pointed, downward-facing tip of the heart, which is located towards the left side of the chest.

It is the part of the heart that is farthest from the base, where the major blood vessels enter and exit the heart.

The lowest part of the exterior of the heart is called the apex. The apex is the pointed end of the heart, located at the bottom of the heart, and is situated slightly to the left of the midline of the body. It is formed by the tip of the left ventricle, which is the chamber responsible for pumping oxygen-rich blood to the body.

The apex of the heart is an important landmark in clinical medicine as it can be palpated on the chest wall and used as a reference point for locating the heart sounds during a physical examination.

In addition, the apex is also a common site for taking cardiac catheterization measurements and for performing procedures such as pericardiocentesis, which involves removing excess fluid from the sac surrounding the heart.

Overall, the apex plays a crucial role in the functioning of the heart and is an important landmark in the diagnosis and treatment of various cardiac conditions.

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The blood vessels that carry oxygenated blood to your muscles are your ____________ and the ones that carry deoxygenated blood back to the heart are your_________

Answers

Answer:

Arteries

Veins

Explanation:



3x + 2y = 6 is an equation in standard form.

Answers

Answer:

3x+2y=6xy because we have to add

In nonvascular plants, windblown spores are dispersal agents, and some species forcefully expel their spores. How are windblown spores an adaptation to reproduction on land?

Answers

Windblown spores are an adaptation to reproduction on land for nonvascular plants because they help these species disperse their offspring over larger areas. This increases the chances of finding suitable habitats for growth and reproduction, promoting the survival and expansion of the plant species.

Windblown spores are an adaptation to reproduction on land for nonvascular plants because they allow for efficient dispersal of the species. Without a vascular system to transport nutrients and reproductive cells, nonvascular plants rely on external agents like wind and water to carry their spores to new locations where they can germinate and grow. The ability to forcefully expel their spores also increases the chances of successful reproduction by increasing the distance the spores can travel. This adaptation helps ensure the survival and expansion of the species in a terrestrial environment.

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Nonvascular plants have evolved windblown spores to assist them disseminate their progeny across broader regions during land-based reproduction.

This improves the likelihood of discovering favorable environments for development and reproduction, assisting in the survival and spread of the plant species. Since they effectively disperse the species, windblown spores are a form of nonvascular plants' adaptation to reproduction on land.

Nonvascular plants rely on external forces like wind and water to move their spores to new sites where they may germinate and thrive since they lack a vascular system to transport nutrients and reproductive cells. By enabling their spores to go farther, the capacity to forcefully discharge their spores also improves the likelihood of successful reproduction.

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T/F. soil is not directly important to animal life.

Answers

Answer: false

Explanation:Soil is important to animal life for a variety of reasons. Soil helps recycle organic material by housing decomposers. That organic material can then be used by plants and as habitat for animals too

The given statement, "Soil is not directly important to animal life," is false because the soil is directly important to animal life.

While animals primarily inhabit terrestrial and aquatic environments, soil plays a crucial role in supporting various aspects of their lives. Here are a few reasons why soil is important for animals:

1. Habitat and Shelter: Many animals, such as burrowing mammals, insects, reptiles, and amphibians, rely on the soil as a habitat or for shelter. Soil provides protection from predators, and extreme weather conditions, and serves as a place for nesting or hibernation.

2. Nutrient Cycling: Soil contains organic matter and nutrients that support plant growth. Herbivorous animals depend on plants for food, and the nutrients obtained from plants are transferred up the food chain to carnivorous animals. Thus, soil indirectly sustains animal populations by facilitating the growth of plants.

3. Decomposition and Detoxification: Soil is inhabited by a diverse community of organisms, including bacteria, fungi, and invertebrates, that contribute to decomposition processes.

They break down organic matter, such as dead plant material and animal remains, returning essential nutrients back to the soil. Soil organisms also play a role in detoxifying harmful substances present in the environment.

4. Water Regulation: Soil acts as a reservoir for water, playing a crucial role in regulating water availability for plants and animals. It helps retain water, preventing excessive runoff and erosion and provides moisture for plants and smaller organisms that live within it.

5. Biodiversity Support: Soil is home to a vast array of organisms, including insects, worms, microorganisms, and other invertebrates. This soil biodiversity is essential for maintaining healthy ecosystems and supporting the functioning of food webs.

In summary, the soil is indeed directly important to animal life, providing habitat, nutrients, decomposition processes, water regulation, and supporting soil biodiversity.

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A company wants to test a new dog food that
is supposed to help overweight dogs lose
weight. 50 dogs are chosen to get the new
food, and 50 more continue their normal diets.
After one month, the dogs are checked to
see if they lost any weight.

Answers

Answer:

To ensure a fair comparison, the company should ensure that the two groups of dogs are similar in all aspects except for their diets.

Explanation:

This is a scenario for a controlled experiment, where the company wants to test the effectiveness of new dog food by comparing it to the current diet of a group of dogs.

The experimental group consists of the 50 dogs given the new dog food, while the control group consists of the 50 dogs that continue their normal diets. The company will measure the weight of each dog in both groups before and after one month of the experiment.

To ensure a fair comparison, the company should ensure that the two groups of dogs are similar in all aspects except for their diets.

Where are "genes" located in a eukaryotes cell?

Answers

Explanation:

Genes are contained in chromosomes, which are in the cell nucleus

Answer:

in the dna? im not sure

Explanation:

Co..me up with your own example of a stimulus and response with living organisms
.

Answers

Answer:

A crocodile goes into the shade when the temperature goes high.

An example of a stimulus and response with living organisms is as follows:

Whenever any living organism is exposed to a warm or hot object it immediately pulls back its own body from this point of contact. This is also called as reflex action.

What is a Stimulus?

A stimulus may be defined as a type of thing or event that immediately provokes a specific functional reaction by an organ or tissue in response to a specific treatment.

The information that living organisms perceive from the external world is sensed by the sense organs then with the help of nerves it sends to the brain which stimulates a specific action and sends messages to the body to react in a particular way with the respect to the stimulus.

Therefore, an example of a stimulus and response with living organisms is briefly mentioned above.

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what are the disadvantges of using fossil fuels to generate electricity

Answers

It results in air pollution because the emission of greenhouse gases

So my younger sister says that since she hit puberty she can no longer be referred to as a child. I disagreed and called her a child anyways. Do you agree or disagree with my sister? SideNote: We are both minors so I think we are both still children.

Answers

Answer:

I would still refer to her as a child because even tho you may have hit puberty that doesn't mean that ur mentally ready to not be called a child.

Explanation:

Before the RNA can leave the nucleus, it must be modified and edited.
Sections on the RNA molecule that are not involved in the making of the protein are called ____ and will be ____.

Answers

Answer:

RNA polymerase and Nucleus

Explanation:

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