In some plant species, pink flowers result from incomplete dominance.?

Question

What traits would be present in the parent plants used in this cross?

Answer 1

Yes, that is usually what happens. When red and white flowers cross, that may happen. The parent cells can be either heterozygous or homozygous. There is more chance of a plant going through incomplete dominance if the parent plants are homozygous. That is because if the P1 generation is made of 2 homozygouses the F1 generation comes out as all heterozygous. For incomplete dominance to take place, the F1 generation plants have to be heterozygous.

If you use one heterozygous and one homozygous, you have a 50-50 chance of the plant going through incomplete dominance. The same goes if both parents are heterozygous.

If the plant comes out as pink, the parents should be one red and the other white. Remember that red is the dominant trait!

Answer 2

In an ideal circumstance, one parent would be homozygous white, the other would be homozygous red. This would result in an F1 progeny that is 100% phenotypic pink. However, if some of the progeny are not pink, the red parent, the dominant one, may be heterozygous.

Answer 3

Codominance is shown between A and B blood types...when both alleles are present both are expressed equally so that the phenotype is AB blood. Characteristics of both A and B blood types are present in a person with AB blood. Incomplete dominance is shown in a cross between red and white snap dragons. White allele=R2 and red allele=R1. when these 2 are crossed the F1 generation is pink where this is a blended appearence. This is a mixture of both dominant genes.

Answer 4

Red crossed with white gives pink in incomplete dominance. When you are looking at co-dominance Red crossed with white gives you red and white striped flowers.

Answer 5

Parents can be either red*white or pink*pink.