QUESTION 8 In wheat, red kernal color results from the presence of a dominant al

Question

QUESTION 8 In wheat, red kernal color results from the presence of a dominant allele at each of two independently segregating genes (R B plants have red kernels). Plants with the rrbb genotype have white kernals, while R_bb and rrB_ have brown kernals. You have a truebreeding line with red kernals, and another truebreeding line with white kernels. If you cross the two lines, what phenotype(s) will you see in the F1 offspring? all red all white O all brown 0 9 red: 3 brown: 1 white QUESTION 9 What progeny will you see in the F2 generation? 1 red: 1 brown: 1 white 9 red: 3 brown: 1 white 9 red: 6 brown: 1 white 3 red: 1 brown: 1 white QUESTION 10 If take two of the brown F2 offspring and cross them to obtain 100 offspring, which were all red. What were the genotypes of the two brown F2 plants used as parents in this cross? both parents were rr B- one parent was Rrbb and the other was rr Bb one parent was RRbb and the other was rr BB both parents were R- B-

Explanation / Answer

Question 8.

All plants will be red in the F1 offspring.

Question 9.

In F2 generation there will be 9 red: 6 brown:1 white

Question 10

One parent is RRbb and another one is rrBB.

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