Gray Seed Color in Peas Is Dominant to White

question 57

Multiple Choice

Gray seed color in peas is dominant to white. Assume that Mendel conducted a series of experiments where plants with gray seeds were crossed among themselves, and the following progeny were produced: 302 gray and 98 white.
(a) What is the most probable genotype of each parent?
(b) Based on your answer in (a) above, what genotypic and phenotypic ratios are expected in these progeny? (Assume the following symbols: G = gray and g = white.)

• A) (a) GG × gg; (b) genotypic = 3:1, phenotypic = 1:2:1
• B) (a) Gg × Gg; (b) genotypic = 1:2:1, phenotypic = 3:1
• C) (a) GG × Gg; (b) genotypic = 1:2:1, phenotypic = 2:1
• D) (a) gg × Gg; (b) genotypic = 1:2, phenotypic = 3:1
• E) (a) Gg × Gg; (b) genotypic = 3:1, phenotypic = 9:3:3:1

---

Definitions:

Intrinsic Case Study

A type of case study focusing on the unique aspects of a single case, often conducted to gain a deeper understanding of the subject rather than to generalize findings.

Grounded Theory

A research method that involves building theory through systematic collection and analysis of qualitative data.

Abstract Theory

A theoretical proposal that focuses on general principles and ideas rather than practical applications or concrete examples.

Local Schools

Educational institutions situated within a specific geographical area, serving the community's residents.