Answer:
A Punnett square is a diagram used to determine the statistical likelihood of each possible genotype of the offspring of two parents for a given trait or traits. Reginald Punnett was applying the laws of probability to work pioneered by Gregor Mendel in the mid-1800s.
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The mantle is the layer directly under the sima
The answer is B. Because RNA is copied as the compliment to DNA, except uracil replaces thymine