Gen. Genetics Quiz 2
The norm of reaction is the name given to the contribution of genetics to the variation of a quantitative trait .
False
In a mating between individuals with the genotypes IAIO X IOIO, what percentage of the offspring are expected to have the O blood type?
50%
Albinism, is a lack of pigmentation in humans. Two parents with normal pigmentation have an albino child.) What is the probability that their next child will be albino?
1/4
Albinism, is a lack of pigmentation in humans. Two parents with normal pigmentation have an albino child.) What is the probability that their next three children will be albino?
1/64
What is the probability of a carrier Dad and a carrier Mum, having a carrier child first and then an affected/ diseased child?
1/8
With incomplete dominance, a likely ratio resulting from a monohybrid cross would be ________.
1:2:1
Assume that a dihybrid cross (AaBb X AaBb) is made in which the gene loci are autosomal, independently assorting, and incompletely dominant. What phenotypic ratio would you expect from such a cross? Just provide the ratio, not the phenotypes.
1:2:1:2:4:2:1:2:1
A condition in which one gene pair masks the expression of a another gene pair is called ________.
Epistasis
The presence of more than two alternative forms of a given gene would be called ________.
Multiple alleles