Question

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a snapdragon with pink flowers with the genotype rr is mated with a snapdragon with red flowers with the genotype rr. what is the possibility of obtaining a flower with a heterozygous genotype?
the possibility of obtaining a heterozygous flower is %.
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Explanation:

Step1: Identify gamete genotypes

Parent 1 (Rr): produces $R$ and $r$ gametes.
Parent 2 (RR): produces $R$ gametes only.

Step2: Create Punnett square

$$\begin{array}{c|cc} & R & r \\ \hline R & RR & Rr \\ R & RR & Rr \\ \end{array}$$

Step3: Count heterozygous offspring

Heterozygous (Rr) genotypes: 2 out of 4 total.

Step4: Calculate percentage

$\text{Percentage} = \frac{2}{4} \times 100 = 50$

Answer:

50