Question

.
In Snapdragons, petal color is inherited through incomplete dominance with the possible colors being red, white, and pink. What would be the chance of getting a white flower if you cross a red flower with a pink flower?

0%

25%

50%

100%

Answer 1

In snapdragons, if we represent the alleles for petal color as follows:

- \( R \) = Red allele
- \( W \) = White allele
- \( P \) = Pink which arises from the incomplete dominance between \( R \) and \( W \).

The genotype for each flower color would be:

- Red flower: \( RR \)
- White flower: \( WW \)
- Pink flower: \( RW \)

If we cross a red flower (\( RR \)) with a pink flower (\( RW \)), the possible offspring genotypes can be determined by a Punnett square:

\[
\begin{array}{c|c|c}
& R & R \\
\hline
R & RR & RR \\
\hline
W & RW & RW \\
\end{array}
\]

From this cross, the possible genotypes and their proportions are:

- \( RR \) (Red): 2 (or 50%)
- \( RW \) (Pink): 2 (or 50%)

Thus, there are no \( WW \) genotypes (which would lead to white flowers) produced from this cross.

Therefore, the chance of getting a white flower from this cross is **0%**.