n snapdragons, flower color is determined by a gene that follows an incomplete dominance pattern. In this species, the red allele (R) produces red flowers, and the white (W) allele produces white flowers. The heterozygous individual produces a blended phenotype of pink flowers.

Question

If a red snapdragon is cross pollinated with a pink snapdragon, calculate the probability that the offspring will have white flowers.

(1 point)
Responses

100%
100% - no response given

0%
0% - no response given

50%
50% - no response given

25%

Answer 1

To solve this problem, we can determine the genotypes of the parents involved in the cross-pollination and then use a Punnett square to predict the possible offspring genotypes.

1. Identify the genotypes of the parents:

   • The red snapdragon has the genotype RR (homozygous red).
   • The pink snapdragon has the genotype RW (heterozygous).

2. Cross the genotypes using a Punnett square:

   • The possible gametes from the red snapdragon (RR) are: R, R (both alleles are red).
   • The possible gametes from the pink snapdragon (RW) are: R, W.

Using this information, we can set up the Punnett square:

       R     R
     __________
   R |  RR  |  RR |
     |______|______|
   W |  RW  |  RW |
     |______|______|

3. Results of the cross:

   • The offspring genotypes are:
     • 2 RR (red flowers)
     • 2 RW (pink flowers)

4. Calculate the probability of offspring with white flowers:

   • There are 0 offspring with the genotype WW (white flowers) from this cross.
   • Therefore, the probability of the offspring having white flowers is 0%.

Final Answer: 0%