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Norma-Jean [14]
3 years ago
15

What are the effects of genetic drift ?

Biology
1 answer:
sattari [20]3 years ago
4 0
An allele gets sponteniously (not by natural selection) eliminated from the population’s gene pool. This can happen in smaller populations
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Scissors are considered a compound machine because ____________.
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Scissors change the magnitude or direction of a force without any motor.
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How is it possible that over 20 million living organisms on the planet are made up of only 5 types of nucleotide based arranged
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Answer/Explanation:

The DNA in all living organisms is made up of 4 bases, adenine, thymine, guanine, cytosine. The RNA replaces thymine with uracil, making 5 types of nucleotide. The number of nucleotide pairs in a genome can range from half a million up to 100,000 million - meaning there are an exponential number of combinations of these 4 bases.

Imagine an organism exists that has only 2 nucleotides (<u><em>this is over 200,000x smaller than even the smallest bacterial genome</em></u>). If we allow any nucleotide at each of the 2 positions, then we have 4x4 (4²) or 16 possible combinations of sequences. For a nucleotide length of 4, the total number of possible combinations are 4⁴ or 256.

Since we are dealing with many millions of nucleotides, there are essentially infinite combinations of nucleotides, giving rise to the variation that produces over 20 million organisms on the planet.

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3 years ago
How does carbon not get lost when it moves through the carbon cycle
Greeley [361]

Answer:

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2 years ago
Which of the following would be the most likely reason some minorities may tend to underutilize therapeutic treatment? lack of t
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What is the scientific method, and what are the steps for the scientific method?
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