Answers
Answer:
Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell.
Answer:
i think it's the first one
Explanation:
Related Questions
A research biologist is studying cells from a new organism recently discovered in the Brazilian rain forest. She determines that the typical cell contains a total of 10 chromosomes. How many possible combinations of chromosomes could this organism produce as a result of independent assortment? Assume the organism reproduces sexually
Answers
Answer:
(2⁵)²: 1024 combinations
Explanation:
In this case, the chromosome haploid number (n) of the target species is equal to 10, and therefore its diploid number (2n) is equal to 5 (i.e., somatic cells in the target species contain 5 pairs of chromosomes). That means that one individual can produce 2⁵ or 32 different gametic combinations. Moreover, the number of possible combinations that emerge from paring different gametes (sexual reproduction) can be calculated as (32)² = 1024 combinations.
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Ida's mother has blue eyes and her father has brown eyes. DNA analysis shows that Ida carries alleles for both blue and brown, but her eyes are brown. What does this make Ida's brown allele?
Recessive
Dominant
Codominant
Sex-linked
Answers
A(n) psychologist may examine the layout of an office and consider new ways to optimize the productivity and health of the employees.
Answers
It is TRUE that a psychologist (I-O psychologist) can also be involved in examining the layout of office and device ways to improve efficiency, safety, and the health of employees.
Psychology is a broad field that studies the mental state and its processes as well as behaviors.
One of the branches of psychology that deals with design of tools and office space and environment for enhanced productivity, health and safety of employees is known as Industrial-organizational Psychology (I-O Psychology).
Therefore, it is TRUE that a psychologist (I-O psychologist) can also be involved in examining the layout of office and device ways to improve efficiency, safety, and the health of employees.
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A j shaped growth curve indicates
Answers
Answer:
J-shaped growth curve A curve on a graph that records the situation in which, in a new environment, the population density of an organism increases rapidly in an exponential (logarithmic) form, but then stops abruptly as environmental resistance (e.g. seasonality) or some other factor (e.g. the end of the breeding phase) suddenly becomes effective.
What's the term for the descriptions below?
Cytoplasm, Ribosome, AUG, Polymerase, Substitution Mutation, Nucleus, MRNA
When a nucleic is switched on a strand of DNA
Converts DNA to RNA
Converts RNA to Amino Acids
Thanks!
Answers
The terms listed are related to molecular biology and include cytoplasm, ribosome, AUG (start codon), polymerase, substitution mutation, nucleus, and mRNA.
Cytoplasm: The term refers to the gel-like substance inside cells where various cellular processes take place.
Ribosome: It is a cellular structure responsible for protein synthesis. Ribosomes read the mRNA (messenger RNA) and assemble amino acids into a polypeptide chain to form proteins.
AUG: AUG is a specific sequence of three nucleotides (adenine, uracil, guanine) in mRNA known as the start codon. It signals the beginning of protein synthesis and indicates where the ribosome should start translating the mRNA.
Polymerase: Polymerase refers to enzymes involved in DNA or RNA synthesis. DNA polymerase is responsible for synthesizing DNA, while RNA polymerase is involved in the synthesis of RNA from a DNA template.
Substitution Mutation: It is a type of genetic mutation where one nucleotide is replaced with another in the DNA sequence. This alteration can lead to changes in the resulting mRNA and protein sequence, potentially affecting gene function.
Nucleus: The nucleus is a membrane-bound organelle that contains the cell's DNA. It serves as the control center of the cell, housing the genetic material and coordinating cellular activities.
mRNA: mRNA stands for messenger RNA. It is a type of RNA molecule transcribed from DNA in the nucleus and carries the genetic code from the DNA to the ribosome. mRNA acts as an intermediary between DNA and protein synthesis.
These terms are all fundamental to the understanding of molecular biology, genetic processes, and protein synthesis. They play critical roles in various cellular functions and contribute to the complexity of life at the molecular level.
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Researchers have historically considered the human appendix to be a vestigial structure. What evidence, if true, would best disprove this claim?
A.
The appendix was used to help digest leaves in the ancestors of humans, but it appears to serve no function in modern humans.
B.
Chimpanzees also have an appendix, and humans and chimpanzees inherited the appendix from the same ancestor.
C.
Cows have an appendix to help them digest grass, but it evolved independently from the appendix found in humans.
D.
The human appendix helps to maintain the health of the gut, and arose fairly late in the evolutionary history of mammals.
Answers
The evidence that would best disprove the claim that the human appendix is a vestigial structure is option D. The human appendix helps to maintain the health of the gut and arose fairly late in the evolutionary history of mammals.
1. Option A suggests that the appendix was used to help digest leaves in the ancestors of humans but serves no function in modern humans. While this statement implies that the appendix may have had a purpose in the past, it does not directly disprove the claim that it is vestigial.
2. Option B states that chimpanzees also have an appendix and that humans and chimpanzees inherited the appendix from the same ancestor. This evidence supports the idea that the appendix has been conserved through evolution and suggests that it may serve a function in both species. However, it does not directly disprove the claim of the appendix being vestigial.
3. Option C mentions that cows have an appendix to help them digest grass, but it evolved independently from the appendix found in humans. This statement provides an example of another species with a functional appendix, but it does not specifically address the status of the human appendix.
4. Option D is the most compelling evidence to disprove the claim. It states that the human appendix helps maintain the health of the gut and arose fairly late in the evolutionary history of mammals. This suggests that the appendix has a beneficial role in humans and is not simply a vestigial remnant.
Therefore, option D presents the strongest evidence that would best disprove the claim that the human appendix is a vestigial structure.
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Because the nerve tracts of the spinal cord undergo _, the right side of the brain with the left side of the body, and vice versa
Answers
Answer:
Decussation
Explanation:
Which is considered a top predator in the ocean?
Answers
Answer:
Killer Whales
Explanation:
They are considered to be the most powerful killers in the ocean, capable of taking down massive prey like whales - hence their name - and even great white sharks. In fact, their hunting strategies are widely attributed to causing the extinction of the largest shark to have ever lived, the megalodon
I hope you found this helpful :)
Explain Cell entry mechanisms of the non-enveloped viruses
Answers
Answer:
Non-enveloped viruses can enter the cytosol by directly penetrating the plasma membrane, as well as through a variety of endocytic mechanisms leading to penetration of internal membrane(s). Internal membranes crossed by non-enveloped viruses include the endosomal membrane
Explanation:
Hope this helped!
do you believe that life exists somewhere OTHER THAN earth?
Please answer with a couple sentences:))
Answers
Answer:
Explanation:
Obviously there are other planets like earth and more suns as well. Also, oxygen may possibly exit there. So yeah
RNA has one base that is different from dnas base it’s called
Answers
Explanation:
DNA and RNA base pairing is slightly different since DNA uses the bases adenine, thymine, cytosine, and guanine; RNA uses adenine, uracil, cytosine, and guanine. Uracil differs from thymine in that it lacks a methyl group on its ring.
why should we care our sense organ
Answers
Answer:
Our sense organs are very important for us as they allow us to connect with the world. Our five sense organs a
An experiment involves a species of flies divided into two populations. Population A is exposed to X-ray radiation, while Population B is not exposed to the radiation. Population A exhibits amutation, while Population B exhibits no mutation. Both populations are then allowed to reproduce under normal conditions. Twenty generations later, the descendants of Population Aexhibit the same mutation as the original population, while the descendants of Population B do not. Which claim can Aditi make based on the results from this experiment?A.Mutations caused by environmental factors are detrimental to the organisms.B.Mutations caused by environmental factors can be inheritable.C.Mutations caused by environmental factors negatively affect reproduction rate.D.Mutations caused by environmental factors cannot be passed onto the next generation.
Answers
Mutations are changes that occur in the genetic material of an individual or a population.
Mutations can be spontaneous when a variation in the DNA replication process generates a change in the genetic material, or they can be acquired by external factors, such as radiation.
When there is a change in the genetic code of individuals, this change will also be passed on to their descendants. Therefore, it is hereditary.
Analyzing the exercise, we have that the answer is option "B" is correct because mutations induced by external factors can be hereditary, so it affected the entire population A.
Fill in the blanks please help thx.
Earth is heated unevenly by the sun based on the evidence that different amounts of incoming energy from the ________ are transferred to the ________ at different locations on earth. They learn the. __________ that __________ energy is transferred at locations near the equator and that the amount of energy ______ farther from the equator.
possible words.
more
gyres
decreases
wind
surface
sun
pattern
NOT ALL THE WORDS ARE GOING TO WORK JUST SO YOU KNOW
Answers
Answer:
Here you go!
Explanation:
Blank 1: Sun
Blank 2: surface
Blank 3: more
Blank 4: gyres
Blank 5: decreases
Write a three (3) paragragh response to this: "A realistic mutation that would greatly benefit the human
race would be..."
Describe the mutation or change and tell how it could happen and why it would be beneficial. The mutation must
be realistic and your response should be detailed, giving examples of the change(s) and whether it would all be
positive or if there could be negative situations, as well.
Answers
A potential realistic mutation that could greatly benefit the human race is an increased resistance to infectious diseases.
Realistic human mutationOne potential realistic mutation that could greatly benefit the human race is an increased resistance to infectious diseases. Such a mutation could occur through various mechanisms, including natural selection, genetic engineering, or epigenetic modifications.
This mutation would be beneficial because it would improve the health and well-being of individuals, reduce healthcare costs, and potentially prevent pandemics and global health crises. For example, a mutation that enhances the activity of immune cells or increases the expression of antimicrobial peptides could help individuals fight off infections more effectively and reduce the likelihood of spreading infectious diseases to others.
However, it is important to note that there could be potential negative consequences associated with this mutation. For instance, increased resistance to infectious diseases could lead to a reduction in the diversity of the human microbiome, which could have implications for overall health and immune function.
Additionally, it is possible that infectious agents could evolve in response to this mutation, potentially leading to the emergence of new and more virulent strains of pathogens. Therefore, it is important to consider the potential risks and benefits of any mutation carefully and to approach genetic engineering with caution.
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A carbon Atom can bond with four other atoms because
Answers
hope this helps :) (please mark brainliest if right!)
Once a cumulus cloud has formed, what needs to happen in order to produce a
thunderstorm?
A downdraft in the atmosphere needs to activate
the water droplets to begin falling.
Some of the accumulated water droplets need to
detach from th cumulus cloud.
Enough water droplets need to band together to
start falling back to earth as rain.
The temperature needs to increase rapidly before
anything will change.
Answers
Answer: Enough water droplets need to band together to
start falling back to earth as rain.
Explanation: I took the test
which one of these animals has the lowest fertility of offspring?
a) insects
b) worms
c) fish and aquatic animals
b) mammals
Answers
Answer:
I think it is Mammals
am only 85% sure of the answer am giving you
48. Which of the following is not true about the following figure?
1
23
12
4
6
11
10-
9
5
8
7-
Select one:
a. Number 2 produces blood cells
b. Numbers 4-9 are part of the diaphysis
Oc. Number 5 is mostly adipose tissue
Od. This is a child's bone
Oe. Number 3 used to be cartilage but has ossified in this individual
Answers
The statement that is not true about the given figure is option d, "This is a child's bone."
Which is not true about the following figure?The given figure represents a long bone in an adult human. The long bone has several identifiable parts, including the epiphysis, diaphysis, and medullary cavity, as well as features such as the periosteum, articular cartilage, and nutrient foramina.
Option a, "Number 2 produces blood cells," is true as the bone marrow inside the epiphysis produces red and white blood cells.
Option b, "Numbers 4-9 are part of the diaphysis," is true as the diaphysis is the long, tubular part of the bone that lies between the epiphyses.
Option c, "Number 5 is mostly adipose tissue," is true as the yellow bone marrow, which is mainly adipose tissue, fills the medullary cavity of the diaphysis.
Option e, "Number 3 used to be cartilage but has ossified in this individual," is true as the epiphyseal plate, also known as the growth plate, is made of hyaline cartilage during the bone's growth and development, but eventually ossifies as the bone matures.
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What will be the importance of labeling your slides
Answers
Answer:
Slide labels will help you because you can effectively identify and keep track of your samples throughout the process. It also helps to assure accurate sample identification.
Explanation:
Dr. Malani Mackey, works for a pharmaceutical company developing a drug for treating skin cancer. This particular drug requires her to make a mixture of L-histidine, polysorbate 80, and sucrose that must heated and swirled to mix. Which of the following types of glassware will she used for making this mixture? Justify your answer.
Answers
Answer:
This question lacks options, the options are:
A) 100 ml Beaker
B) 250 ml Erlenmeyer Flask
C) 250 ml Graduated Cylinder
The answer is B). 250 ml Erlenmeyer Flask
Explanation:
Several types of glasswares are used in chemical laboratories for performing processes like mixing, heating and stirring of chemicals. In this question, Dr. Malani Mackey who works for a pharmaceutical company is trying to develop a cancer drug by making a mixture of L-histidine, polysorbate 80, and sucrose. This mixture is required to be heated and stirred (shaked) during the mixing. Hence, a glassware adapted for this purpose must be used.
- Erlenmeyer Flask, also known as Conical flask is a laboratory flask named after its conical base/bottom. This glassware is used to mix and even heat chemicals in the laboratory. Due to its cone-shaped body coupled with a long cylindrical neck, the contents in the Erlenmeyer Flask can be shaked or stirred without spilling them. This property gives the ERLENMEYER flask an edge over the BEAKER (has a large open mouth) when used for stirring purposes.
The Graduated cylinder is best suited for making precise measurements of liquid chemicals, hence, it is not an appropriate glassware for heating and stirring.
Small insects fall into the pitcher plant and can not climb out due to presence of
a) nutrients
b) decomposers
c) enzymes
d) stiff hair
Answers
Small insects fall into the pitcher plant and can not climb out due to presence of enzymes.
Because they don't rely on any other living thing to provide them with the energy they need to function, plants are the primary producers of an ecosystem.However, there are also several carnivorous plants that hunt a variety of small insects and bugs to consume them in order to obtain the essential energy.Similar to pitcher plants, which are also common carnivorous plants, pitcher plants hunt primarily using traps resembling jars and lids.When there are no insects or bugs sitting on the jar-like structure, it is always opened. A lid-shaped leaf tightly encloses the jar trap once the beetle or insect has settled on that jar-like structure.Additionally, the digestive enzyme fluid included within this trap aids in the digestion of the insects and other pests caught inside the plant.Therefore, option C. is correct.
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Explain how genetic information, along with an understanding of the process of descent with modification, enables scientists to reconstruct phylogenies that extend hundreds of millions of years back in time.
Answers
By comparing the DNA sequences of different species, scientists can identify shared ancestry and determine how closely related different species are. This enables them to make predictions about the evolutionary relationships between different species and to reconstruct phylogenies that extend back in time, providing insights into the evolutionary history of life on Earth. Molecular techniques, such as DNA sequencing, are particularly useful for this purpose because DNA is a stable, heritable molecule that is passed from one generation to the next.
Carbon moves out of the
_by decomposition
O Hydrosphere
O Geosphere
O Atmosphere
Biosphere
Answers
c
Explanation:
atmosphere(Atmosphere)
The pedigree below shows inheritance of an X-
linked trait in a family. Based on the inheritance
pattern, what is the genotype of the person in
generation III (third generation), letter b?
Generation
11
111
TOOOD
500
Answers
Pedigrees have multiple uses. One of them is getting to know an individual's genotype. In the e xposed example, the individual IIIb is X-Y.
What is a pedigree?
A Pedigree is the representation of a family's history. This graph is used to track a trait through different generations, and analyze the inheritance pattern of a particular gene and its expression.
It is a tool used to understand how genes are transmitted from the parental generation to the descendants, and what are the probabilities of inheriting them.
In sex linked inheritance, we need to remember that the gene coding for the trait is linked to the sex-chromosome (in this case, the X-chromosome).
In pedigrees, usually affected individuals or individual carring the trait are representes with solid black figures.
Individual IIIb is a black square, meaning it is an affected man. Its genotype is X-Y. The X-chromosome is carrying the recessive allele (-).
In the attached files you will find the pedigree with the genotype of each member of the family. Notice that individuals X+X represent either homozygous dominant or heterozygous females.
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Sea Daisies, a new class of echinoderm was discovered in 1986. They have the following characteristics: they look like sea stars without arms, they live in the deep ocean (abyss) and attach to sunken wood, and they have a water vascular system but lack a true gut. Why do you think they were classified as echinoderms and not as a new phylum? How do you think they feed and move?
Answers
they were classified as echinoderms and not as a new phylum because they have the attribute of the echinoderm where they were seen as the sea stars without arms, they live in the deep ocean.
What is an echinoderms?An echinoderm can be described as the any member that can be attributed to the phylum Echinodermata.
The members of this family can be seen as one that posses a recognisable radial symmetry which help in the process of their classification, and some of the members that fall into this caetegories are:
starfish brittle starssea urchins sand dollars sea cucumbers "stone liliesIt should be noted that the phylum can be seen as the level of classification or taxonomic rank that can be seen below kingdom.
In conclusion, the Sea Daisies which was thenew class of echinoderm that was discovered in 1986 can be classified as the echinoderm and not as phylum since they have the feautures of the echinoderm.
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Can you please write this reaction down step by step on paper?
Answers
The fatty acid C23:3 (Δ8,11,14) has 23 carbon atoms and three double bonds located at positions 8, 11, and 14 and its breakdown occurs through beta-oxidation.
What are the beta-oxidation steps?The fatty acid C23:3 (Δ8,11,14) has 23 carbon atoms and three double bonds located at positions 8, 11, and 14.
The breakdown of this fatty acid can occur through β-oxidation, which is the process of sequentially removing two-carbon units from the carboxyl end of the fatty acid. Each round of β-oxidation involves four steps: oxidation, hydration, oxidation, and thiolysis.
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Which type of cloud would most likely produce precipitation?
A.
Nimbostratus
B.
Cirrostratus
C.
Stratus
D.
Cirrus
Clouds would most likely form when air is sinking.
True
False
Answers
Answer:
Nimbostratus
true
what are microorganisms?
Answers
Answer:
A microorganism is a living thing that is too small to be seen with the naked eye. Examples of microorganisms include bacteria, archaea, algae, protozoa, and microscopic animals such as the dust mite.
if the light intensity decreases then the dissolved oxygen level will decreases because