Round Seeds (R) Are Dominant to Wrinkled Seeds (R), and Yellow

question 58

Multiple Choice

Round seeds (R) are dominant to wrinkled seeds (r) , and yellow seeds (Y) are dominant to green seeds (y) . A plant of unknown genotype is testcrossed to a true-breeding plant with wrinkled and green seeds. The offspring produced were 53 round and yellow, 49 round and green, 44 wrinkled and yellow, and 51 wrinkled and green. What is the likely genotype of the parent in question?

• A) RRYY
• B) RrYY
• C) RRYy
• D) RrYy
• E) rryy