A heterozygous round seeded plant (Rr) is crossed with a homozygous round seeded plant (RR). What percentage of the offspring will be homozygous dominant(RR)?
Question 1 options:
4:4 100%
3:4 75%
2:4 50%
1:4 25%
The possible genotypes of the offspring are RR and Rr.
When a heterozygous round seeded plant (Rr) is crossed with a homozygous round seeded plant (RR), the genotypes of the offspring will be as follows:
- 50% of the offspring will be homozygous dominant (RR)
- 50% of the offspring will be heterozygous (Rr)
Therefore, the percentage of the offspring that will be homozygous dominant (RR) is 50%.
The correct answer is: 2:4 50%.