Hippogriffs can have black fur or gray fur. However, there is a high rate of mutation from black alleles into gray alleles. In a population of 1000 hippogriffs, if there are 600 alleles for black fur and the forward mutation rate (ie., from black to gray) is 10%, approximately how many black alleles should be expected in the next generation

540

Explanation:

In this case, the mutation rate from the allele black fur to the allele gray fur decreases by 10 percent per generation, while the original number of black fur alleles is 600.

Percentage of 10% of 600 = (10 x 600) / 100 = 60 alleles  

In consequence, the number of black alleles in the next generation will be >>> 600 - 60 = 540 alleles

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