JAMB - Biology (2024 - No. 77)

Use the diagram above to answer the question that follows

What is the genotypic ratio of the offspring produced in F\(_1\) generation?

2:1:1

1:2:1

2:2

3:1

Since offsprings for F\(_1\) are AA AS AS SS

Phenotypic ratio : 3: 1

Genotypic ratio : 1 AA : 2 AS : 1 SS ⇒ 1: 2: 1