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BIO 322 PATHO FINAL EXAM LATEST 2026-2027 ACTUAL EXAM
WITH COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS
(100% VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED|| ||BRANDNEW!!!||
In which situation will gene swamping prevent local adaptation?
A. The adaptive trait varies quantitatively and is controlled by
several gene loci.
B. Selection and migration are both very low in magnitude
C. Gene flow is high and the patch favoring the alternative allele
is small
D. Selection and migration are both very high in magnitude
E. Selection is strong and migration is low - ANSWER-C
Consider gene locus having 4 alleles in a population of 100
individuals. Imagine that when studying this locus you observe
declines in both mean fitness and heterozygosity at a consistent
rate. What do you infer as to the cause of these trends?
A. Migration of new alleles into the population
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B. Extinction of new mutations in the population
C. a combination of selection and infrequent inbreeding
D. loss of low frequency advantageous allele via genetic drift
E. Disruptive selection against heterozygotes
**FIND ANSWERS** - ANSWER-A
Bateman's principle, a central idea to theory associated with
sexual selection, states that
A. An allele will spread in the population if inclusive fitness is
enhanced enough to compensate for the cost of cooperation
B. The slope of the curve relating number of offspring produced to
the number of mates is greater for the sex that invests more time
and energy into reproductions
C. Variation among males in mating success leads to greater
fitness with increasing number of mates
D. Variation in mating success is similar among males and
females and increases with number of mates
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**FIND ANSWERS** - ANSWER-C
You collect individuals from different allopatric populations of a
leaf-eating beetle. In the lab, you conduct mate-choice
experiments to assess levels of reproductive isolation among
beetles from different populations. Assuming that ecological
speciation occurred in the wild, which pattern should you expect?
A. Less reproductive isolation among populations that share
similar habits
B. More reproductive isolation among populations that share
similar habitats
C. No reproductive isolation
D. Complete reproductive isolation among all populations
E. Reproductive isolation that is independent of habitat type -
ANSWER-A
If access to females limits male reproduction, we might expect:
A. Females to compete for males
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B. Males to be very selective among potential mates
C. Males to compete for access to females, or resources females
require and have weapons and/or be larger than females are both
likely, whereas selectivity of mates among males and females
competing for males are less likely
D. Males to compete for access to females, or resources females
require
E. Males to have weapons and/or be larger than females -
ANSWER-C
Muller's ratchet may operate in asexually reproducing populations
because
A. sexually reproducing populations do not have genetic load
B. Linkage disequilibrium due to drift eliminates the zero
deleterious mutation class
C. mildly deleterious mutations are masked in diploid organisms
D. Of rapid population growth rate, asexual populations are larger
and mutate faster - ANSWER-B
BIO 322 PATHO FINAL EXAM LATEST 2026-2027 ACTUAL EXAM
WITH COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS
(100% VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED|| ||BRANDNEW!!!||
In which situation will gene swamping prevent local adaptation?
A. The adaptive trait varies quantitatively and is controlled by
several gene loci.
B. Selection and migration are both very low in magnitude
C. Gene flow is high and the patch favoring the alternative allele
is small
D. Selection and migration are both very high in magnitude
E. Selection is strong and migration is low - ANSWER-C
Consider gene locus having 4 alleles in a population of 100
individuals. Imagine that when studying this locus you observe
declines in both mean fitness and heterozygosity at a consistent
rate. What do you infer as to the cause of these trends?
A. Migration of new alleles into the population
,2|Page
B. Extinction of new mutations in the population
C. a combination of selection and infrequent inbreeding
D. loss of low frequency advantageous allele via genetic drift
E. Disruptive selection against heterozygotes
**FIND ANSWERS** - ANSWER-A
Bateman's principle, a central idea to theory associated with
sexual selection, states that
A. An allele will spread in the population if inclusive fitness is
enhanced enough to compensate for the cost of cooperation
B. The slope of the curve relating number of offspring produced to
the number of mates is greater for the sex that invests more time
and energy into reproductions
C. Variation among males in mating success leads to greater
fitness with increasing number of mates
D. Variation in mating success is similar among males and
females and increases with number of mates
,3|Page
**FIND ANSWERS** - ANSWER-C
You collect individuals from different allopatric populations of a
leaf-eating beetle. In the lab, you conduct mate-choice
experiments to assess levels of reproductive isolation among
beetles from different populations. Assuming that ecological
speciation occurred in the wild, which pattern should you expect?
A. Less reproductive isolation among populations that share
similar habits
B. More reproductive isolation among populations that share
similar habitats
C. No reproductive isolation
D. Complete reproductive isolation among all populations
E. Reproductive isolation that is independent of habitat type -
ANSWER-A
If access to females limits male reproduction, we might expect:
A. Females to compete for males
, 4|Page
B. Males to be very selective among potential mates
C. Males to compete for access to females, or resources females
require and have weapons and/or be larger than females are both
likely, whereas selectivity of mates among males and females
competing for males are less likely
D. Males to compete for access to females, or resources females
require
E. Males to have weapons and/or be larger than females -
ANSWER-C
Muller's ratchet may operate in asexually reproducing populations
because
A. sexually reproducing populations do not have genetic load
B. Linkage disequilibrium due to drift eliminates the zero
deleterious mutation class
C. mildly deleterious mutations are masked in diploid organisms
D. Of rapid population growth rate, asexual populations are larger
and mutate faster - ANSWER-B
