Question

According to Mendel’s law of dominance, which genotype(s) represent offspring with red flowers?
Responses

A RRRR

B RrRr

C RR or RrRR or Rr

D rr or Rrrr or Rr
Question 2

According to Mendel’s law of dominance, we would expect _________ percent of the offspring to have white flowers.
Responses

A 0%0%

B 10%10%

C 25%25%

D 50%

Answer 1

To answer both questions according to Mendel’s law of dominance:

**Question 1: Which genotype(s) represent offspring with red flowers?**

In Mendel's genetics, if "R" represents the allele for red flowers and "r" represents the allele for white flowers, the organisms that express the red flower trait would be those with at least one "R" allele. Therefore:

- A: RRRR (homozygous dominant) - **Red flowers**
- B: RrRr (heterozygous) - **Red flowers**
- C: RR or Rr (homozygous dominant or heterozygous) - **Red flowers**
- D: rr (homozygous recessive) - **White flowers**

Thus, the correct answer for offspring with red flowers is **C: RR or Rr**.

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**Question 2: We would expect _________ percent of the offspring to have white flowers.**

Assuming we are doing a typical monohybrid cross between two heterozygous plants (Rr x Rr), we get the following phenotype distribution:

- 25% RR (red)
- 50% Rr (red)
- 25% rr (white)

Based on this cross, we find that 25% of the offspring would have white flowers (rr genotype).

So, the correct answer is **C: 25%**.