Dominant alleles
a. usually cause the underproduction of an enzyme.
b. always produce the most desirable phenotype.
c. can mask the expression of other alleles at the same locus.
d. are always the most common allele in a population.
e. were discovered by Charles Darwin.
Question 2
Two people (BOTH heterozygotes) are able to taste a chemical substance called PTC. The ability to taste PTC is caused by a dominant allele (T). The inability to taste PTC is caused by a recessive allele (t). What proportion of their children would be expected to have the tt genotype?
a. 3/4
b. 1/2
c. All
d. 1/4
e. 2/3
Linked alleles tend to be inherited together
Converting enzyme activity to its amount
Self-crossing F2 plants to produce an F3 generation shows that there are two different genotypes amo
Representative Recessive and Dominant Human Traits
Floral components. Anthers produce pollen and ovules produce eggs.
An example of identification and analysis of conditional alleles