High School

In pigeons, the checker pattern of feathers (P) is dominant to the non-checker pattern (p). Suppose a checker pigeon with genotype Pp mates with a non-checker pigeon.

Use a Punnett square to predict the genotypic ratio of their offspring.

Answer :

The genotypic ratio of the offspring produced from the cross between checker pattern feathered pigeon (Pp) and non-checker pattern (pp) will be 50% or 1:1 ratio with 50% heterozygous checker pattern pigeons (Pp) and 50% homozygous non-checker pattern pigeons (pp).

What is genotypic ratio?

Genotype is the genetic makeup of an individual. The alleles present in the offspring makes the genotype of an individual.

Genotypic ratio of a cross is the ratio of different types of alleles present in the offspring which are produced in the cross.

In a cross between checker pattern feather pigeon (Pp) and a non-checker pattern feather pigeon (pp) will have genotypic ratio of F1 generation as 50-50% or 1:1 where, half (50%) of the offspring will have heterozygous checker pattern feather (Pp) and half of the offspring will have homozygous non-checker pattern feather (pp).

The Punnett square for this cross is attached with the answer.

Learn more about Punnett square here:

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Answer:

There is a 50% chance of either Pp or pp genotypes.

Explanation:

P p

|-----------------|

p Pp | pp

|--------|--------|

p Pp | pp

|-----------------|