Exam Questions and CORRECT Answers
genotype and environment - CORRECT ANSWER -What two factors contribute to
phenotype?
species - CORRECT ANSWER -____ = group of individuals that can exchange genetic
material through interbreeding to produce fertile offspring
gene pool - CORRECT ANSWER -____ = all the alleles present in all individuals in a
population or species.
mutation and recombination - CORRECT ANSWER -What are the two sources of genetic
variation?
somatic and germline - CORRECT ANSWER -two types of mutations
somatic mutations - CORRECT ANSWER -_____ = occur in body's tissue in non-
reproductive cells (somatic cells)
germline mutations - CORRECT ANSWER -______ = occurs in reproductive cells
(gametes, egg and sperm cells) and are passed onto the next generation
neutral - CORRECT ANSWER -Most mutations are ___
deleterious - CORRECT ANSWER -mutations occurring in protein-coding regions have
____ effects
advantageous - CORRECT ANSWER -mutations are rarely ___ but can be
, allele frequency - CORRECT ANSWER -____ = portion of specified allele among all the
alleles of a gene in a population. A or a
fixed - CORRECT ANSWER -____ = all individuals in a population are homozygous for
the same allele of a particular gene.
genotype frequency - CORRECT ANSWER -____= portion of a specified genotype
among all genotypes for a particular gene in a population. AA, Aa, or aa
yes - CORRECT ANSWER -Can evolution occur without allele frequency change?
no - CORRECT ANSWER -Do individuals evolve?
Hardy-Weinberg equilibrium - CORRECT ANSWER -_____ = allele and genotype
frequencies don't change overtime.
genetic drift - CORRECT ANSWER -____ = a random change in the frequency of an
allele due to the random effects of a small population size.
allele frequencies - CORRECT ANSWER -nonrandom mating affects genotype
frequencies from generation to generation but not ____
natural selection - CORRECT ANSWER -____= results in allele frequencies changing
from generation to generation according to the allele's impact on the survival and reproduction of
individuals
fitness - CORRECT ANSWER -____ = a measure of the extent to which the individual's
genotype is represented in the next generation.
modern synthesis - CORRECT ANSWER -____= current theory of evolution combining
Darwin's theory of natural selection and mendelian genetics.