If you cross RrYy and RRyy pea plants,what percentage of the offspring will have round yellow peas? R = round,r = wrinkled,Y = yellow,y = green.

Question

Quizplus · Accepted Answer

According to the Punnett square, the possible gametes for RrYy are RY, Ry, rY, and ry. And the possible gametes for RRyy are RY and Ry. 
When we cross these two, we will get the following offspring:

RYRrYy, RrYY, RrYy, RrYY, rRYy, rrYy, RrYy, and rrYY.

Out of these, only RrYy and RrYY have round yellow peas. So, 2 out of 4 possible outcomes have round yellow peas. Therefore, the percentage is 50%.

If You Cross RrYy and RRyy Pea Plants,what Percentage of the Offspring