Also in rabbits, black eyes are dominant to red eyes.
These letters represent the genotypes of the rabbits:
In rabbits, grey hair is dominant to white hair.
Also in rabbits, black eyes are dominant to red eyes.
These letters represent the genotypes of the rabbits:
| GG = gray hair Gg = gray hair gg = white hair |
BB = black eyes Bb = black eyes bb = red eyes |
1. What are the phenotypes (descriptions) of rabbits that have the following genotypes:
Ggbb ____________________ ggBB ________________________
ggbb ____________________ GgBb _________________________
2. A male rabbit with the genotype GGbb is crossed with a female rabbit with the genotype ggBb The square is set up below. Fill it out and determine the phenotypes and proportions in the offspring.
 |
How many out of 16 have grey fur and black eyes? ________ How many out of 16 have grey fur and red eyes? ________ How many out of 16 have white fur and black eyes? ________ How many out of 16 have white fur and red eyes? ________ |
3. A male rabbit with the genotype GgBb is crossed with a female rabbit with the genotype GgBb The square is set up below. Fill it out and determine the phenotypes and proportions in the offspring.
 |
How many out of 16 have grey fur and black eyes? ________ How many out of 16 have grey fur and red eyes? ________ How many out of 16 have white fur and black eyes? ________ How many out of 16 have white fur and red eyes? ________ |
4. Show the cross between a ggBb and a GGBb. You'll have to set the square up yourself!