Coat color in mice is influenced by two genes, one for color (A) and one for the amount of pigment production (C). Mice with the wild type agouti coat color have a yellowish to brownish color. Mice also have a gene that determines the amount of pigment the hair produces.
Coat color in mice is influenced by two genes, one for color (A) and one for the amount of pigment production (C). Mice with the wild type agouti coat color have a yellowish to brownish color. Mice also have a gene that determines the amount of pigment the hair produces.
|
Mouse Coat |
|
|
Agouti coat |
AA, Aa |
|
Solid gray/black coat |
aa |
|
Pigment production |
CC, Cc |
|
Albinism |
cc |
Multiple crosses were made between male and female mice that were each heterozygous for both traits (AaCc). The data table shows the number of mice of each coat type. Calculate the average F1 generation coat color to answer the question.
|
Coat Color |
Number of Mice Born in Each Trial Cross |
Mean Number of Mice |
|||||||||
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
||
|
Agouti coat |
11 |
8 |
9 |
9 |
10 |
8 |
10 |
7 |
10 |
9 |
|
|
Solid gray/black coat |
5 |
2 |
1 |
3 |
4 |
3 |
4 |
3 |
3 |
2 |
|
|
Albinism |
3 |
3 |
6 |
4 |
4 |
3 |
3 |
7 |
4 |
3 |
|
Which of the following is the most probable interaction between the two genetic loci, A and C, based on the average F1 ratio results?
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