CATDOLL : CATDOLL: What does snapdragon represent?

1. What does snapdragon represent?

With more money than you can afford, you will prosper.

2. Where does snapdragon grow?

Growing underwater

3. Incomplete dominance for white flowers, obtained by hybridization of red snapdragon and white snapdragon

Select A.

First, let's understand "incomplete dominance". The concept of incomplete dominance is that heterozygotes exhibit traits between dominant homozygotes and recessive homozygotes.

For example, in this question, let the red flower be AA and the white flower be aa, then the color of the Aa flower is between red and white, probably pink.

The next step is easy. Since the parents have red and white flowers, they must be AA and aa. Then F1 is Aa, all pink; F2 is 1/4AA, 1/2Aa, 1/4aa, that is, red accounts for 1/4, pink accounts for 1/2, and white accounts for 1/4.