BSC 111 Prin Of Bio Sci II Chapter 16
UPDATED ACTUAL Exam Questions and
CORRECT Answers
group of organisms of single species living together in same geographic area. - CORRECT
ANSWER - Population
Darwin observed that populations, not individuals evolve, but he couldn't explain (blank) traits
change over time - CORRECT ANSWER - How
Because genes and traits are inked, evolution is really about genetic - or more specifically
(blank) - CORRECT ANSWER - Evolution is change in allele frequencies
evolutionary change within populations - CORRECT ANSWER - microevolution
Field of biology that studies diversity of
populations at level of gene/ in terms of allele differences - CORRECT ANSWER -
Population genetics
alleles of all genes in all individuals in population - CORRECT ANSWER - Gene pool
Percentage of each allele in population's gene pool - CORRECT ANSWER - Allele
frequency
Population in which allele frequencies don't change over time; stable, nonevolving state (genetic
equilibrium) - CORRECT ANSWER - Hardy-Weinberg equilibrium (HWE)
Mathematical model that proposes that genotype frequencies of nonevolving, population can be
described by expression p2 + 2pq + q2 - CORRECT ANSWER - Hardy-Weinberg
principle
, Hardy-Weinberg principle applies only if conditions are met: - CORRECT ANSWER - No
mutation
No migration
Large gene pool
Random mating
No selection
change to DNA sequence; possible source of genetic variation - CORRECT ANSWER -
Mutation
Chemical or physical agents that cause changes to DNA code - CORRECT ANSWER -
Mutagens
the movement of alleles between populations - CORRECT ANSWER - migration
Changes in allele frequencies of gene pool due to chance events - CORRECT ANSWER -
Genetic drift
When natural disasters strike and significantly reduce population - CORRECT ANSWER -
Bottleneck
Type of genetic drift in which loss of genetic diversity is due to natural disasters, disease, over
hunting, over harvesting, or habitat loss - CORRECT ANSWER - Bottleneck effect
Type of genetic drift in which genetic variation is lost when few individuals individuals break
away from large population to found new population - CORRECT ANSWER - Founder
effect
Mating between relatives - CORRECT ANSWER - Inbreeding
UPDATED ACTUAL Exam Questions and
CORRECT Answers
group of organisms of single species living together in same geographic area. - CORRECT
ANSWER - Population
Darwin observed that populations, not individuals evolve, but he couldn't explain (blank) traits
change over time - CORRECT ANSWER - How
Because genes and traits are inked, evolution is really about genetic - or more specifically
(blank) - CORRECT ANSWER - Evolution is change in allele frequencies
evolutionary change within populations - CORRECT ANSWER - microevolution
Field of biology that studies diversity of
populations at level of gene/ in terms of allele differences - CORRECT ANSWER -
Population genetics
alleles of all genes in all individuals in population - CORRECT ANSWER - Gene pool
Percentage of each allele in population's gene pool - CORRECT ANSWER - Allele
frequency
Population in which allele frequencies don't change over time; stable, nonevolving state (genetic
equilibrium) - CORRECT ANSWER - Hardy-Weinberg equilibrium (HWE)
Mathematical model that proposes that genotype frequencies of nonevolving, population can be
described by expression p2 + 2pq + q2 - CORRECT ANSWER - Hardy-Weinberg
principle
, Hardy-Weinberg principle applies only if conditions are met: - CORRECT ANSWER - No
mutation
No migration
Large gene pool
Random mating
No selection
change to DNA sequence; possible source of genetic variation - CORRECT ANSWER -
Mutation
Chemical or physical agents that cause changes to DNA code - CORRECT ANSWER -
Mutagens
the movement of alleles between populations - CORRECT ANSWER - migration
Changes in allele frequencies of gene pool due to chance events - CORRECT ANSWER -
Genetic drift
When natural disasters strike and significantly reduce population - CORRECT ANSWER -
Bottleneck
Type of genetic drift in which loss of genetic diversity is due to natural disasters, disease, over
hunting, over harvesting, or habitat loss - CORRECT ANSWER - Bottleneck effect
Type of genetic drift in which genetic variation is lost when few individuals individuals break
away from large population to found new population - CORRECT ANSWER - Founder
effect
Mating between relatives - CORRECT ANSWER - Inbreeding
