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Final Exam Biology 1105 with 100- correct answers(graded A+).
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Final Exam Biology 1105 with 100- correct answers(graded A+).
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Final Exam: Biology 1105 with100% correct answers(graded
A+)
Ultimate source of all genetic variation - answer mutation
individuals move into population
Introduces new alleles "gene flow" - answer Migration
certain genotypes produce more offspring; leads to adaptation -
answer Natural selection
relative allele frequencies in a population will not change over time
(no evolution) if certain assumptions are met - answer Hardy-
Weinberg Theorem
Hardy-Weinberg Assumptions - answer 1. Random mating
2. Closed populations(no entry or exit)
3. No mutations
Hardy Weinberg assumes there is an equilibrium which means there
is no____. Few, if any, populations meet these assumptions - answer
No evolution.
Departures from Hardy-Weinburg - answer 1. Mutation
2. Gene Flow
3. Genetic Drift
, Movement of organisms into or out of populations; population gains
or loses alleles - answer Gene Flow
Change in allele frequency - answer Genetic Drift
when a few individuals from a population colonize new habitats,
they seldom carry alleles in the same frequency as the alleles in the
gene pool from which they came. - answer Founder effect
Larger population greatly reduced in size; resulting population not
representative of original population - answer Bottleneck effect
decrease in ______ makes population less likely to withstand
environmental stress and more susceptible to extinction - answer
genetic diversity
a population or group of populations that differs morphologically
from other populations - answer Morphological species concept
Genetic data reveal that genetically distinct populations may look
___ - answer very similar;part of the morphological species concept
Large morphological differences sometimes exists between very
______ populations - answer closely-related; part of the
morphological species concept
Groups of actually or potentially interbreeding natural populations
that are reproductively isolated from other groups - answer
Biological Species Concept
Organisms may appear to be alike and___ - answer be different
species; part of the Biological species concept
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