Question

In four o’clocks, flower color is due to incomplete dominance. Some flowers are red, some are white, and others are pink.

Cross a red flower with a white flower.

What is the probability of getting red offspring? %

What is the probability of getting pink offspring? %

What is the probability of getting white offspring? %

Answer 1

In four o’clocks, the flower color follows an incomplete dominance pattern. We can denote the alleles as follows:

- \( R \): Red allele
- \( W \): White allele

Since the inheritance is based on incomplete dominance:

- \( RR \) results in red flowers
- \( WW \) results in white flowers
- \( RW \) results in pink flowers

When you cross a red flower (\( RR \)) with a white flower (\( WW \)), the Punnett square for this cross would be:

| | R | R |
|------|----|----|
| W | RW | RW |
| W | RW | RW |

From this cross, all offspring will have the genotype \( RW \), which corresponds to pink flowers.

Now let's summarize the probabilities.

1. **Probability of getting red offspring (\( RR \))**: 0%
2. **Probability of getting pink offspring (\( RW \))**: 100%
3. **Probability of getting white offspring (\( WW \))**: 0%

In percentage form:

- Red offspring: **0%**
- Pink offspring: **100%**
- White offspring: **0%**