How do the frequencies of the waves compare? Wave A has a lower frequency because it has a
smaller amplitude.
Wave A has a higher frequency because it has a
shorter wavelength.
The waves have the same frequency because they
have the same wavelength.
The wavęs have the same frequency because they
have the same amplitude.

Wave A has a higher frequency because it has a shorter wavelength.

Explanation:

The frequency of a wave is inversely proportional to its wavelength. That means that waves with a high frequency have a short wavelength, while waves with a low frequency have a longer wavelength.

this is true, assuming that the allele is completely recessive and incomplete dominance is not a factor.