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Kisachek [45]
3 years ago
14

Evolution is one of the unifying themes of biology. Evolution involves change in the frequencies of alleles in a population. For

a particular genetic locus in a population, the frequency of the recessive allele (a) is 0.4 and the frequency of the dominant allele (A) is 0.6.
Identify a particular environmental change and describe how it might alter allelic frequencies in this population. Explain which condition of the Hardy-Weinberg principle would not be met.
Biology
1 answer:
lapo4ka [179]3 years ago
3 0

A Mutation occurring in the population will change the allelic ratio.

<h3>What is evolution?</h3>

Evolution refers to the changes that occurs in organisms over a long period of time such that those changes results in new species better adapted to their environment and having higher specialization.

One of the factors of evolution is mutation.

According to the Hardy-Weinberg principle, the allele and genotype frequencies of a population of organism in equilibrium will remain constant in the absence of evolutionary influences.

Therefore, if a mutation occurs in the population, the allelic ratio will change.

Learn more about Hardy-Weinberg principle at: brainly.com/question/1365714

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The people in a location in Florida depend on groundwater for their supply of drinking water. The groundwater in the location ha
olganol [36]
Hey:)

Bottled water is definitely not a long-term plan.

Reducing the water consumption does not really solve the problem.

Store the rain water is a nice choice, but you cannot drink the rain water directly, it needs to be filtered.

Since the contamination is only caused by N and P, it should be easy to filter out, but still, it depends on the type of the compound of N and P.

I would choose the last option.
6 0
3 years ago
A scientist wishes to develop a new drug that prevents synaptic communication via neuropeptides but not small molecule neurotran
kirill [66]

Disruption of axonal transport would be a good target for his drug.

<h3>What is disruption of axonal transport?</h3>
  • Axonal transport defects are among the early molecular events leading to neurodegeneration in mouse models of amyotrophic lateral sclerosis (ALS).
  • Gene expression profiles indicate that dynactin-1 mRNA is downregulated in degenerating spinal motor neurons of autopsied patients with sporadic ALS.
  • Disruption of axonal transport also underlies the pathogenesis of spinal muscular atrophy and hereditary spastic paraplegias.
  • The neurotoxin β,β′-iminodipropionitrile (IDPN) selectively disrupts slow axonal transport without affecting fast anterograde or retrograde axonal transport.
  • Impairment of slow axonal transport causes a proximal accumulation of neurofilaments.
  • Because neurofilaments regulate axonal diameter, this accumulation leads to a marked swelling of the axon.
  • Acrylamide causes decreased axonal transport, also causing proximal accumulations of neurofilaments and swelling.

To learn more about axonal transport,

brainly.com/question/10600853

#SPJ4

5 0
2 years ago
Sally was exposed to hepatitis. Her doctor gave her an injection containing
expeople1 [14]

Answer:

The correct answer is - passive immunity - artificially acquired.

Explanation:

Passive immunity is the immunity that involves giving or acquiring antibodies from other sources instead of developing them on one's own. This type of immunity can be natural and artificial. Mother breastfeed the babies, is the natural passive immunity example as milk also contain antibodies required for immunity of babies.

Artificial passive immunity is the immunity that comes from injecting the antibodies created in different animals or persons which called antiserum or vaccines such as snake antivenom.

5 0
3 years ago
The Y axis of a graph gives the units for the
igor_vitrenko [27]

Answer:

The y-axis of a graph gives the units for the dependent variable.

Explanation:

Dependent variable is the variable being tested and measured in an experiment, it depends on the independent variable.

7 0
3 years ago
Which of the following is a natural cause of acid rain?
arlik [135]
The natural cause of acid rain is the <span>chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air.</span>
8 0
3 years ago
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