1. Dominant alleles are expressed when present in either single or double dose.
ID: 21797 • Letter: 1
Question
1. Dominant alleles are expressed when present in either single or double dose. In this case dominance is a matter of developmental physiology. In populations alleles may be dominant in that they are more common than the other alleles. Recessive alleles may be dominant in the frequency sense.a. TRUE b. FALSE
In the late 1960s and early 1970s the neutral theory of molecular
evolution was proposed and elaborated. This plot compares the
numbers of nucleotide substitutions for two types of mutations. The
higher rate of substitution for synonymous mutations is consistent with
a. mutational deletion theory. b. crossover expansion theory.
c. Lamarckian evolution.
d. the neutral theory. c. the theory of heterozygote excess.
Inbreeding does not directly change allele frequencies, it can
reduce the frequency of deleterious alleles because
a. more recessive homozygotes are produced. b. q2 > p2.
c. heterozygotes are increasing in frequency.
d. p2 > q2 e. multiple allelic loci are rare.
Knowing the frequency of an allele at locus N provides no information
about the frequency of alleles at locus T in a population which is
a. undergoing a selective sweep through hitch hiking.
b. in linkage disequilibrium. c. in linkage equilibrium.
d. undergoing epistatic convolution. e.. increasing in numbers.
Explanation / Answer
b. FALSE c. Lamarckian evolution. a. more recessive homozygotes are produced. d. undergoing epistatic convolution
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.