Edit View Go Tools Window Help BIOL325_pre exam 2(1) (page 7 of 7) Q Sea 20. \"F

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Edit View Go Tools Window Help BIOL325_pre exam 2(1) (page 7 of 7) Q Sea 20. "Fish" question You will be learning how freshwater stickleback populations have lost their body armor through positive selection of a low-armor Eda allele, which is found at low frequency in marine populations. Through phylogenetic analysis, how could you determine whether the low armor phenotype arose once and spread throughout freshwater populations, or whether the allele was selected for independently multiple times?

Explanation / Answer

Ans- to achieve this type of research we should collect the old fish samples. The DNA fingerprinting is a process which can help in finding if the allele was selected in a single time or in multiple times.the old samples DNA fingerprint will show if they have already incorporated these alleles.

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