If a mutation appears in one individual that changes one base in a DNA sequence

Question

If a mutation appears in one individual that changes one base in a DNA sequence to another baso, and the population is evolving by genetic drift, over time that mutation will 0 A. Always take over and displace the old sequence. O B. Disappear half the time and completely displace the old sequence half the time. O C. Disappear most of the time. O D. Always disappear Reset Selection Question 3 of 11 When a DNA sequence is mutated, the individuals with that mutated sequence must also: Have corresponding changes in some trait like size or color. B. Be in a different population from the individuals with the older sequence. C. All have the same mutation at the same time. D. A mutation in a DNA sequence doesn't imply anything else about that individual. C)

Explanation / Answer

Please find the answers below:

Answer 1: Choice A (Since there is a single base pair mutation which bears chances of establishment due to genetic drift, it is very likely that new traits and hence new species might establish themselves due to dissociation from the parent population)

Answer 2: Choice A (it is not always mandatory that a mutational change in the DNA is reflected in the phenotype. On the other hand, only germline mutations appear in the next generation as well and somatic mutations in the euchromatin appear in the phenotype. However, a mutation comes up with a phenotypic change and this is why a mutation is detectable)

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