How many different kinds of gemetes are produced by the `F_(1)` offspring from a cross between pure strain of plants with yellow peas and a pure strain of plants with green peas?

Options

A. 1
B. 2
C. 3
D. 8

Answer

To determine how many different kinds of gametes are produced by the F1 offspring from a cross between pure strains of plants with yellow peas and pure strains with green peas, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Traits**:
- Yellow peas are dominant (Y).
- Green peas are recessive (y).

2. **Determine the Genotypes of the Parent Plants**:
- The pure strain of yellow peas will have the genotype: **YY** (homozygous dominant).
- The pure strain of green peas will have the genotype: **yy** (homozygous recessive).

3. **Perform the Cross**:
- When we cross YY (yellow) with yy (green), the F1 generation will inherit one allele from each parent.
- The resulting genotype of the F1 offspring will be: **Yy** (heterozygous).

4. **Determine the Gametes Produced by the F1 Generation**:
- The F1 plant (Yy) can produce two types of gametes:
- One gamete carrying the dominant allele (Y).
- One gamete carrying the recessive allele (y).

5. **Count the Different Kinds of Gametes**:
- Since the F1 plant can produce two different gametes (Y and y), the total number of different kinds of gametes produced by the F1 offspring is **2**.

### Final Answer:
The F1 offspring from the cross between pure strains of yellow peas and green peas produces **2 different kinds of gametes**.

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