Question

Mendelian Genetics Questions:

1: What are the three possible offspring genotypes from the combination of Y and y?

2: Identify the four possible gametes produced by the individuals YYSs and YySs (S = smooth, s = wrinkled).

3: What phenomena in nature is represented by you stirring or mixing the beads in step 2.

4: Is the ratio of observed phenotypes the same as the ratio of predicted phenotypes? Why or why not?

5: In the space below, show your work and provide a correct ratio of possible genotypes that could be produced by a cross between Individual #1 and Individual #2.

Answer 1

1) Three possible offspring genotypes are: YY, Yy, yy

2) The four possible gametes by YYSs and YySs are:

YS, Ys, yS, ys

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