Question
Biology Question on Principles of Inheritance and Variation
In pea plants, yellow seeds are dominant to green. If a heterozygous yellow seeded plant is crossed with a green seeded plant, what ratio of yellow and green seeded plants would you expect in F1 generation ?
A
9 : 1
B
1 : 3
C
3 : 1
D
50 : 50
Answer
50 : 50
Explanation
Solution
Yellow (Y) seeds are dominant to green (y). So a heterozygous yellow seeded plant will have the genotype of (Yy) and a green seeded plant will have genotype of (yy). When these two plants are crossed, the F1 generation will have the ratio of yellow : green as 50 : 50. It is