AP BIOLOGY

HEREDITY

INCOMPLETE DOMINANCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In snapdragons, red = RR, pink = Rr, and white = rr. What is the probability that two pink flowers will have pink offspring?
A
0%
B
25%
C
50%
D
75%
E
100%
Explanation: 

Detailed explanation-1: -Answer and Explanation: If two hybrids are crossed, meaning two heterozygous pink flowers, the chances that the offspring will have pink flowers is 50%.

Detailed explanation-2: -Therefore, the probability that the offspring produced by two pink snapdragons will also be pink is 50 percent.

Detailed explanation-3: -So, the correct option is ‘25%’.

Detailed explanation-4: -50% Correct! The genotype for the pink flower is Rr and the genotype for the white flower is rr. This would lead to a 50% chance of the offspring having a phenotype of pink.

Detailed explanation-5: -So that tells us that there’s a 25% chance for one in four chance of white flowers.

There is 1 question to complete.