When a red flower homozygous pea plant is crossed with a white flower plant what colour is produced in `F_(1)` :-

Options

A. Red
B. White
C. Pink
D. Red + white

Answer

To solve the question of what color is produced in the F1 generation when a homozygous red flower pea plant is crossed with a white flower plant, we can follow these steps:

### Step 1: Identify the Genotypes
- The homozygous red flower pea plant has the genotype **RR** (where R represents the dominant allele for red color).
- The white flower plant has the genotype **rr** (where r represents the recessive allele for white color).

### Step 2: Set Up the Cross
- When we cross these two plants, we can set up a Punnett square to visualize the possible combinations of alleles.
- The gametes from the homozygous red plant (RR) can only contribute R alleles.
- The gametes from the white flower plant (rr) can only contribute r alleles.

### Step 3: Fill in the Punnett Square
- The Punnett square will look like this:

```
R | R
-------------------
r | Rr | Rr
-------------------
r | Rr | Rr
```

### Step 4: Analyze the F1 Generation
- From the Punnett square, all offspring (F1 generation) will have the genotype **Rr**.
- Since R is dominant over r, all F1 plants will express the dominant trait.

### Step 5: Determine the Phenotype
- The phenotype of the F1 generation will be red flowers because the presence of at least one dominant allele (R) results in the expression of the red flower trait.

### Conclusion
- Therefore, the color produced in the F1 generation when a homozygous red flower pea plant is crossed with a white flower plant is **red**.

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