Answered

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In rats, the allele for having a black coat (B) is dominant to the allele for having a brown coat (b). Two rats that are heterozygous for coat color have offspring. What is the probabilty (as a percent) of offspring that will be homozygous dominant?

Sagot :

soyo793

Answer: 25%

Explanation:

The easiest way to solve this question is to use the Punnett Square method. Whenever two heterozygous genotypes are crossed, the offspring ratio will always be 1:2:1 (BB=25%, Bb=50%, bb=25%). I hope that helps!

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