In zebrafish, a male tester was mated to a F1 trihybrid for the genes A, B and C
ID: 33349 • Letter: I
Question
In zebrafish, a male tester was mated to a F1 trihybrid for the genes A, B and C. in cis conformation. The results are in the table above, and they are somewhat weird. What is going on?
Question options:
A is 50 cM from B; C is 12.3 cM from B.
A is linked to neither B nor C; B and C are 12.3 cM apart.
A is in the middle; B is 50cM away on one side; C is 50cM away on the other.
B is unlinked to A; B and C are 6.1 cM apart.
A is sex linked and on the hemizygous part of the chromosome; B and C are 12.3 cM apart on the heterozygous part of the chromosome.
A is 50 cM from B; C is 12.3 cM from B.
A is linked to neither B nor C; B and C are 12.3 cM apart.
A is in the middle; B is 50cM away on one side; C is 50cM away on the other.
B is unlinked to A; B and C are 6.1 cM apart.
A is sex linked and on the hemizygous part of the chromosome; B and C are 12.3 cM apart on the heterozygous part of the chromosome.
Explanation / Answer
Correct answer is
B is unlinked to A; B and C are 6.1 cM apart.
B is unlinked to A; B and C are 6.1 cM apart.