Assume that a cross is made between AaBb and aabb plants and that the offspring occur in the following numbers: 106 AaBb, 48 Aabb, 52 aaBb, 94 aabb. These results are consistent with which scenario described?

A) The genes are unlinked.
B) There is a very high coefficient of coincidence.
C) In the AaBb parent, the dominant alleles are on one homolog and the recessive alleles are on the other.
D) In the AaBb parent, each homolog has one dominant allele and one recessive allele.
E) It is impossible to tell.


Answer: C

Biology & Microbiology

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