4 ain species of hamsters, fur color is inherited by alleles that show incomplet

Question

4 ain species of hamsters, fur color is inherited by alleles that show incomplete dominance. Brown fur (B) is dominant to white fur (b). Heterozygotes (Bb) will grow a tan colored fur. Draw a Punnett square showi offrnaross between a homozygous brown fur and a homozygous white fur. What are the genotypes of the offspring? What are their phenotypes? ? TAN 100% tan hamster Bb on in the previous questior, a cross is made between a brown hamste Indicate the genotypes of the parents. Indicate the genotypes of the offspring. Indicate the phenotypes of the 5 Using the informati offspring. Draw a Punnett square to support your answer ble-Gene Inheritance: Complete Dominance l af iut one You can follow the same guidelines as mentioned

Explanation / Answer

4) The genotype of homozygous brown fur - BB.
The genotype of homozygous white fur - bb.
The genotype of heterozygous tan colored fur - Bb.
Cross between BB X bb.

Gametes formed B and B b and b.

Next generation Bb(All have tan colored fur).

By punnett square:

The genotypes of offspring - Bb.

All have Bb genotypes.

The phenotypes of offspring - All have tan colored fur.

5) The genotype of brown hamster - BB.
The genotype of tan hamster - Bb.

Cross between BB X Bb.

Gametes formed B and B B and b.

Next generation:

The genotypes of offspring - BB and Bb.

50% of offspring have BB and 50% offspring have Bb genotype.

The genotypic ratio = 1:1.

The phenotypes of offspring - Brown and tan fur.

The phenotypic ratio = 1:1.

50% of offspring have brown fur and 50% offspring have tan fur phenotype.

Male/Female B B b Bb( tan colored fur) Bb( tan colored fur) b Bb( tan colored fur) Bb( tan colored fur)

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