Many genetic studies, particularly those of recessive traits, have focused on small isolated human populations, such as those on islands. Which are major advantages that isolated populations might provide for the study of recessive traits? a. Some recessive traits that are rare in most large populations may be relatively common in some small populations. b. Geneticists are more likely to be able to control mating choices in small populations. c. Autosomal dominant traits will be more likely to be found in such populations. d. Small populations likely will experience a high mutation rate and thus produce more genetic variation for study. e. Inbreeding, which is more common in small populations, will tend to increase the frequency of recessive phenotypes.

The correct answer are options a and e.

Explanation:

One may witness more chances of inbreeding in the small populations that are isolated and comprise fewer numbers. The expression of recessive phenotypes are enhanced by the phenomenon of inbreeding as if crossing between the heterozygous individuals is done, the chances of getting recessive phenotype become one by fourth, on the other hand, when the heterozygotes and the homozygous recessive individual are mated than the chances of obtaining recessive phenotype becomes 1/2.

Thus, it can be concluded that the probabilities of the appearance of recessive phenotypes enhance due to inbreeding. Hence, the correct statements are that in small populations, the common phenomenon, that is, inbreeding enhances the possibilities of recessive phenotypes and some of the traits, which are found rarely in bigger populations may be found commonly in small populations.  

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population. population is the number of people or animals in a particular place. an example of population is over eight million people living in new york city.

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