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 brackets provided) in the offspring.
QUESTION 1
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
G = grey fur
g = white fur
B = black eyes
b = red eyes
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Gb |
Gb |
Gb |
Gb |
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gB |
GgBb Grey fur, and black eyes |
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gb |
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gB |
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gb |
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- 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? _____ (_________)
QUESTION 2
A male hare with the genotype AaBb is crossed with a female hare with the genotype AABb. Use a Punnet square to determine the genotypes, phenotypes and proportions in the offspring. Show all your working.
[17]
A = black hair
a = yellow hair
B = brown eyes
b = blue eyes
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