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

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Definitions:

Collecting Data

The process of gathering and measuring information on variables of interest in a systematic fashion.

Direct Observation

The method of gathering data by watching subjects in their natural environment without intervention or manipulation.

Interviews

A method of gathering information through direct, face-to-face conversation where questions are asked to obtain qualitative data.

Independent Variable

In a study, the variable that is intentionally altered by the investigator to see its impact on the dependent variable.