Answer:
Explanation:
The observed frequency of the double crossovers (DCOs) is 20/1000, or 0.02. If there is no interference then this will be the same as the expected, which is just the product of the single crossover frequencies, that is, SCO frequency (a-b) x SCO freq. (b-c) = 0.02.
(a) Any combination of map distances whose product (a-b) x (b-c) = 0.02 is possible. However, three are most likely:
a 20 mu b 10 mu c
a 10 mu b 20 mu c
a 14.14 mu b 14.14 mu c
(b) The distances would be exactly the same.
(c) The expected number of DCO progeny would be 17.
Layer D is the youngest layer
Jupiter, Saturn, Uranus, and Neptune
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An adaptive mutation is a beneficial mutation that may confer an adaptive advantage to the species.
<h3>What is a mutation?</h3>
A mutation is any modification in the genetic material (DNA sequence) or genome in the cells of an organism.
Mutations can be beneficial, detrimental or neutral according to their position in the genome and the environment in which the organism lives.
In conclusion, an adaptive mutation is a beneficial mutation that may confer an adaptive advantage to the species.
Learn more about mutations here:
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