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lilavasa [31]
3 years ago
8

Genetic drift always causes:________ a) equilibrium in genetic frequencies. b) maladaptive changes in gene frequencies. c) adapt

ive changes in gene frequencies. d) changes in gene frequencies that are random with respect to adaptation
Biology
1 answer:
ArbitrLikvidat [17]3 years ago
5 0

Answer:

The correct option is (D).Genetic drift is otherwise known as the Sewall Wright effect or allelic drift and is defined as the change in the allelic frequency of a given population that results due to random sampling .

Explanation:

Genetic drift refers to a phenomenon that is characterized by the change in the allelic frequency of a given population. It results in the disappearance of the gene variants that eventually leads to a reduction in the genetic variation. Occurrence of chance phenomena like emigration and immigration and independent selection eventually leads to genetic drift. This leads to the increment in the homozygosity as the changes in the associated allelic frequency does not move in the optimum predefined direction. The major driving forces is the genetic mutation or migration apart from random selection. The increased frequency and the fixation of rare alleles also occur due to genetic drift.

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What is an abiotic factor that can prevent the organism from becoming preserved
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Answer:

Groundwater.

Explanation:

Groundwater in this case is the primary abiotic factor that inhibits  organism from being preserved after been buried. After being buried, decomposers here becomes the biotic factors that eat up dead bodies.

It is also known that sedimentary basins encounters a certain change in its subsidence rate over time, and eustatic sea level changes continuously, causing depth to variations in groundwater and lakes, ocean temperature, spreading rates, continental collision and cracks, and sedimentation in ocean basins.

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3 years ago
Imagine that a eukaryotic cell carries a mutation that causes the poly(a) tail to rarely be added to the primary transcripts. wh
Liono4ka [1.6K]

Imagine that a eukaryotic cell carries a mutation that causes the poly(a) tail to rarely be added to the primary transcripts. The result of such a mutation will be the primary transcript would likely be less stable, and its transport from the nucleus to the cytoplasm would be affected.

A mutation is a change to an organism's DNA sequence. Errors in DNA replication during cell division, exposure to mutagens, or viral infection can all cause mutations.

While most mutations are benign, some can be detrimental. A dangerous mutation may lead to a cancerous condition or possibly a genetic problem. Chromosome mutations are yet another type of mutation. The tiny, thread-like structures known as chromosomes, which are found in the cell nucleus, carry genes.

Genetic mutations, which occur as your cells divide and generate duplicates of themselves, are modifications to your DNA sequence. Your DNA teaches your body how to develop and work. Genetic changes may result in diseases like cancer or, in the long run, may enable people to adapt to their environment more successfully.

To learn more about mutation please visit -
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4 0
1 year ago
2. A student ran around a circular track. Which statement best describes the motion of the student while running?​
Artist 52 [7]

Answer:

Circle-ular

Explanation:

~

6 0
2 years ago
Sweat is the result of which life function?
telo118 [61]
<span>Human sweat is a result of our body getting over heated. We sweat through our pores so our temperatures don't go up and as a result we stay at a normal temperature. We may feel hot but that's because we are hot from the heat of something. If we didn't sweat then our temperature would become very high and we would die.</span>
6 0
3 years ago
Read 2 more answers
The two nucleotide chains of RNA twist into a double helix shape. true or false ​
Sav [38]

Answer:

False

Explanation:

In DNA, there are four possible nitrogen bases – adenine (A), guanine (G), cytosine (C), and thymine (T). In DNA, nucleotides combine to form two long chains that intertwine with each other, like a ladder that has twisted into a spiral.

6 0
3 years ago
Read 2 more answers
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