even though the allele is dominant and the disease in lethal, huntington disease ____________ in human populations because symptoms usually develop after the child-bearing years.

Answer:

b

Explanation:

if the genes are varied some will have different traits than others, which means that some members of the population might not be affected by something that other members would be affected by

Pando aspen grove in Utah is an immense, genetically identical organism consisting of interconnected aspen trees spanning 100 acres and estimated to be around 80,000 years old.

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The explanation of the following terms are seen below:

This is referred to as the biological process by which new individual organism are formed from the parents.

There are two type which are called sexual and asexual reproduction and they have their unique features and techniques.

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Answer:

hope this helped my love have a good rest of your day ^^

Explanation:

they would most likely be in a temperate forest, because that were you would mainly see them if your imagining or not

Answer:

Explanation:

1. Glass that is small and shattered.

2. They can find where the car came from by comparing the glass on the ground to the types of glass on the cars.

3. First they would collect a sample of the glass. Second, they will bring it to a lab and compare it. Finally, they would write down the results in a notebook.

During periods of stress, digestive peristalsis would also be expected to decrease.

The passage suggests that salivation tends to decrease when there is a greater presence of sympathetic signaling compared to parasympathetic signaling. Therefore when salivation decreases, parasympathetic signaling decreases. Hence, during periods of stress, digestive peristalsis would also be expected to decrease.

The sympathetic nervous system is responsible for the fight or flight response, which includes dilation of the pupils, increased heart rate, and increased blood sugar levels through gluconeogenesis. This system is activated in response to stress or other stimuli, and it inhibits the parasympathetic nervous system. The parasympathetic nervous system is responsible for the rest and digest response, which includes salivation, peristalsis, and glycogenesis.

Parasympathetic activation is associated with digestion and glucose uptake, which helps the body conserve energy and promote storage. During periods of stress, the body needs to use its energy stores to cope with the stressor, so parasympathetic activation is inhibited. Therefore, digestive peristalsis would also be expected to decrease during periods of stress.

The other functions listed in the answer choices, gluconeogenesis, cardiac contraction, and pupil dilation, would be expected to increase during periods of stress. Thus, the answer is D. Digestive peristalsis is expected to decrease during periods of stress.

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Answer:

C: 280

Explanation:

An explanation of this question is what is the total surface of the pyramid,

what I did was multiply 14 x 20. How did I get the 20, I got it because since the two sides on the bottom are equal, add the 10+10 and you have 20. So the equation should be 14 x 20.

(If this doesn't help I'm sorry).

The mass number of an element is the sum of the protons and neutrons. The number of neutrons for a given element is the only number that can change and still have the identity of the element stay the same, (because the atomic number is the number of protons). In this case the mass number would be 11

If a biopolymer molecule is attracted to the partial charges found on the water molecule, the biopolymer is Polar.

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The DNA molecules will align at the appropriate density level (taking into account that N15 is more dense than N14)

In 1953, Messelson and Stahl conducted the experiment to determine DNA's semiconservative character. Escherichia coli was produced in the nutritional medium using the bacteria. They first supplied heavy nitrogen (N 15) to the medium for bacterial growth, transferred it to light nitrogen (N 14), and then left it to continue growing. They were raised in both environments for multiple generations. The bacteria strain was subjected to centrifugation during the DNA duplication phases; the heavier bacteria settled to the bottom while the lighter bacteria rose to the top. As seen in the illustration, there were four generations that were seen.

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Genes involved in complex traits can show pleiotropy or epistasis. Pleiotropy is the ability of a single gene to have multiple effects on an individual's phenotype.

Epistasis is the interaction of multiple genes to control a single phenotype.Most genes affecting complex traits have minor effects; few have major effects. This means that many genes that contribute to complex traits have small effects, while only a few have major effects.Many genes involved in complex traits are pleiotropic.

This means that these genes have multiple effects on an individual's phenotype. Therefore, the options you should select for this question are genes involved in complex traits can show pleiotropy or epistasis, most genes affecting complex traits have minor effects; few have major effects, and many genes involved in complex traits are pleiotropic.

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A species that is threatened with extinction in the near future, either globally or within a certain political jurisdiction, is known as an endangered species.

Whooping Crane:

With its pure white plumage, scarlet crest, bugling call, and exquisite mating dance, the Whooping Crane is the tallest bird in North America and one of the most impressive. It is one of our rarest birds and a symbol of the perseverance and innovation of conservation biologists. The species' population fell to about 20 birds in the 1940s, but numbers have since increased to over 600 thanks to captive breeding, wetland management, and a ground-breaking program that teaches juvenile cranes how to migrate.

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Answer:

They are made up of protein.

Explanation:

Through out the cells life they all need protein to keep function.

The neurotransmitters that are considered catecholamines are; All the given options (dopamine, epinephrine, and norepinephrine).

Epinephrine, norepinephrine, and dopamine are examples of neurotransmitters that fall within the catecholamines category.

A specific category of neurohormone (a chemical that is made by nerve cells and used to send signals to other cells). In the body's response to stress, catecholamines play a significant role. When levels are too high, high blood pressure results, which in turn can induce headaches, profuse sweating, a racing heart, soreness in the chest, and feelings of worry. Dopamine, epinephrine (sometimes known as adrenaline), and norepinephrine are three examples of catecholamines (noradrenaline).

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Answer:

The Hawaiian Islands were formed by such a hot spot occurring in the middle of the Pacific Plate. While the hot spot itself is fixed, the plate is moving. So, as the plate moved over the hot spot, the string of islands that make up the Hawaiian Island chain were formed.

Answer:

Under the geocentric model, the Two observations strongly supported the geocentric model:

1) The Sun appears to revolve around the Earth every day, and the Moon and planets also appear so (even if they have their own motions). The stars appear to be fixed in the sky, that's rotating once each day as well;



2) The Earth feels solid, stable and stationary. From the perspective of people on Earth, it seems to be unmoving.



So, until the theory of the heliocentric model became accepted, the geocentric model wasn't largely questioned.Under the heliocentric model, the Sun is in the center of everything (not the Earth), and the Earth orbit the Sun. This theory was proposed by Nicolaus Copernicus, but it took some time until it was accepted.

There where three main reasons why philosophers rejected it at first:

- If the Earth is orbiting the Sun, we should feel its motion;

- If the Earth is orbiting the Sun in a circular movement, the position of the stars should be different when the Earth is in different positions in relation to the Sun;

- The geocentric model is more attractive because it puts the Earth in a privileged position in the Universe.

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(a) The probability that exactly 3 individuals have conditions caused by outside factors is 0.183. (b) The probability that 3 or more individuals have conditions caused by outside factors can be calculated using a cumulative binomial distribution table or a statistical calculator. (c) The mean number of individuals with conditions caused by outside factors is 1.8, and the standard deviation is 1.124.

To solve this problem, we can use the binomial distribution since we are dealing with a fixed number of trials (15 patients), and each patient's condition is either caused by outside factors or natural occurrences, with independent probabilities.

(a) To find the probability that exactly 3 individuals have conditions caused by outside factors, we use the binomial probability formula:

Probability = C(n, x) * p^x * q^(n-x)

where n is the total number of trials (15), x is the number of successes (3), p is the probability of success (12% or 0.12), and q is the probability of failure (88% or 0.88).

Plugging in the values, we have:

Probability = C(15, 3) * 0.12^3 * 0.88^(15-3)

Probability = 0.183

Therefore, the probability that exactly 3 individuals have conditions caused by outside factors is 0.183.

(b) To find the probability that 3 or more individuals have conditions caused by outside factors, we need to calculate the probability of 3, 4, 5, ..., 15 individuals having outside factors and sum them up.

Probability = Probability(3) + Probability(4) + ... + Probability(15)

Using the binomial probability formula, we can calculate each individual probability and sum them. However, to save time and effort, we can use a cumulative binomial distribution table or a statistical calculator.

Assuming you have access to a statistical calculator or software, you can enter the values of n (15), p (0.12), and the range of x (from 3 to 15) to get the desired probability.

(c) The mean (μ) and standard deviation (σ) of the number of individuals with conditions caused by outside factors can be calculated using the formulas for the binomial distribution:

Mean (μ) = n * p

Standard deviation (σ) = √(n * p * q)

Plugging in the values, we have:

Mean (μ) = 15 * 0.12 = 1.8

Standard deviation (σ) = √(15 * 0.12 * 0.88) ≈ 1.124

Therefore, the mean number of individuals with conditions caused by outside factors is 1.8, and the standard deviation is approximately 1.124.

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Answer:

breathe

Explanation:

you inhale oxygen

Answer:

Take deeper breaths from the stomach.

Explanation:

This will help you intake more oxygen and can help to relieve stress.

You're welcome...

Answer:

When the soil is overly saturated with water, the oxygen gets deplenished; in other words there is no space for the oxygen molecules to enter the plant when the soil is high in water content. Thus, the seed will not sprout.

Although bacteria can be used to produce human proteins for therapeutic uses, the disadvantage to using a prokaryotic system is that proteins may not be post-translationally processed correctly.

A protein that is defective or lacking in a certain condition can be replaced with therapeutic proteins. They can also increase the body's production of a helpful protein to lessen the effects of illness or chemotherapy.

Patients with cancer, heart attacks, strokes, cystic fibrosis, diabetes, anaemia, and haemophilia are treated using therapeutic proteins. These proteins are made utilising microbial fermentation in transgenic plants, animals, and cell cultures.

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According to this phylogenetic tree, cyanobacteria is the pairs of prokaryotic subgroups share the most recent common ancestor.

What are cyanobacteria?

In terms of their evolutionary relationships with other prokaryotic groups, cyanobacteria are classified within the domain Bacteria, and are thought to be closely related to other photosynthetic bacteria such as the Chlorobi and Chloroflexi. However, the precise relationships between these groups are still the subject of ongoing research and debate among scientists, and the exact branching patterns of their evolutionary history may vary depending on the specific phylogenetic analysis being performed.

In summary, while cyanobacteria are believed to be one of the earliest and most important groups of prokaryotes in the evolutionary history of life on Earth, the specific details of their relationships with other prokaryotic groups may vary depending on the specific phylogenetic analysis being performed.

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Isomers of an alkane are molecules that have the same molecular formula (i.e. the same number of atoms of each element) but a different arrangement of atoms. This means that they have different chemical and physical properties, even though they have the same number and type of atoms.

The differences between isomers of an alkane are due to differences in the way that the carbon atoms are arranged and how they are connected to each other. For example, the simplest alkane is methane (CH4), which has only one possible arrangement of atoms. However, when we move to larger alkanes like ethane (C2H6) or propane (C3H8), there are multiple ways in which the carbon atoms can be arranged. These different arrangements lead to different isomers, each with its own unique set of properties.

One of the most important properties of alkane isomers is their boiling point. The boiling point of an alkane is determined by the strength of the intermolecular forces between its molecules. These forces depend on the size and shape of the molecule, as well as the types of atoms that make up the molecule. Therefore, isomers of an alkane can have different boiling points due to differences in their molecular shape.

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Based on evidence from DNA of many different genes, the common ancestor of humans and chimpanzees lived approximately 6-8 million years ago in Africa.

DNA evidence has been crucial in tracing the evolutionary history of various species. When scientists compare the DNA of humans and chimpanzees, they find a high degree of similarity, suggesting a shared ancestry. By analyzing the genetic differences between the two species and estimating the mutation rate, researchers have been able to approximate when the common ancestor of humans and chimpanzees lived.

The common ancestor of humans and chimpanzees lived between 6-8 million years ago. This ancestor was a hominid species that eventually branched off into two separate evolutionary lineages: one leading to modern humans (Homo sapiens) and the other leading to modern chimpanzees (Pan troglodytes). This divergence likely occurred in Africa, where the majority of hominid fossils have been found. As time passed, each lineage underwent distinct evolutionary changes, ultimately resulting in the separate species we see today.

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they have no internal membrane bound organelles

A condensed form of DNA that occurs when the cell is dividing, option (a) is correct.

Chromosomes are condensed structures of DNA that occur when the cell is dividing. During cell division, DNA molecules undergo a process of condensation and coiling, resulting in the formation of visible chromosomes. These structures contain genetic information in the form of genes. Chromosomes ensure that genetic material is evenly distributed to daughter cells during cell division.

They consist of a central region called the centromere, which plays a role in the separation of chromosomes during cell division, and two arms known as chromatids. Each chromatid contains a copy of the DNA molecule. Chromosomes are temporary structures that revert back to an uncondensed form of DNA called chromatin during interphase, the non-dividing phase of the cell cycle, option (a) is correct.

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Both sugar molecules and large carbon-based molecules are formed from the carbon atom.

There is a great relationship between atoms in sugar molecules and atoms in large carbon-based molecules because the large carbon based molecule is formed from the combination of sugar molecules.

Carbohydrates, Lipids, Protein and Nucleic acid are the carbon based molecules which has the similarity of carbon atom in it. The sugar molecules is also made up of carbon atom so we can conclude that sugar molecules and large carbon-based molecules are formed from the carbon atom.

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Answer:

Earthquakes, landslides, volcanic eruptions and natural bush fires all affect the many different ecosystems on our planet. Initially, these disasters negatively affect the biodiversity of wetlands, forests and coastal systems by causing the spread of invasive species, mass species mortality and loss of habitat.

Explanation:

Neurotransmitters trigger activity by moving across the synaptic gap to receptor sites on the dendrites on the other side.

Neurotransmitters are chemical messengers that play a crucial role in communication between neurons in the nervous system. When an action potential (electrical signal) reaches the end of a neuron, known as the presynaptic terminal, it triggers the release of neurotransmitters into a small gap called the synaptic gap or synaptic cleft.

The neurotransmitters are released from the presynaptic terminal and diffuse across the synaptic gap. On the other side of the synaptic gap, there are specialized receptor sites located on the dendrites of the postsynaptic neuron. These receptor sites are specifically designed to bind with particular neurotransmitters.

When the neurotransmitters reach the receptor sites on the dendrites of the postsynaptic neuron, they bind to the receptors in a lock-and-key fashion. The binding of the neurotransmitter molecules to the receptor sites initiates a series of chemical and electrical changes in the postsynaptic neuron. This binding can either excite or inhibit the postsynaptic neuron, depending on the nature of the neurotransmitter and the specific receptor.

If the neurotransmitter binding causes depolarization (excitation) of the postsynaptic neuron, it can trigger an action potential in that neuron, continuing the propagation of the signal. On the other hand, if the neurotransmitter binding causes hyperpolarization (inhibition) of the postsynaptic neuron, it makes it less likely to generate an action potential.

After the neurotransmitters have completed their role in signal transmission, they are either taken back up into the presynaptic neuron through a process called reuptake or broken down by enzymes in the synaptic gap to terminate their action.

In summary, neurotransmitters are released from the presynaptic neuron and move across the synaptic gap to bind with specific receptor sites on the dendrites of the postsynaptic neuron. This binding triggers a response in the postsynaptic neuron, either exciting or inhibiting its activity and facilitating the transmission of signals in the nervous system.

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