BIOL 3306 Exam 3 Questions and 100% Correct Answers 2026/27 Latest - UH
Due
Points 100
Questions 25
Available
Time Limit 90 Minutes
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Attempt History
Attempt Time Score
LATEST Attempt 1 23 minutes 92 out of 100
Score for this quiz: 92 out of 100
Submitted
This attempt took 23 minutes.
Correct answer
Question 1
pts
Panel 1 below shows a complex fitness function for a phenotype that has heritable variation.
Panel 2 shows frequency distributions for five populations (A, B, C, D, and E). Based on these
panels, what is likely to happen to the phenotypic mean and the variance in Population D?
, The mean will drift over time and the variance will likely increase
No change in the mean, increase in the variance
No change in the mean, decrease in the variance
Increase in the mean, increase in the variance
Increase in the mean, decrease in the variance
Correct answer
Question 2
pts
Mimic fitness increases
when parasites are at high densities
the greater the frequency of models in the population
the greater the frequency of mimics in the population
under increased recombination
Correct answer
Question 3
pts
A selection experiment is applied to increase body size in an experimental population of flies in the
laboratory. The selection differential (S) is very high, and so is the response to selection (R). Based on
this, what do you know to be true?
Body size has high heritability in this environment.
All the responses to this test question are true.
Body size has a strong effect on fitness in nature.
Body size is controlled by few genes having large effect.
Selection on body size is countered by selection on fitness in nature.
Correct answer
Due
Points 100
Questions 25
Available
Time Limit 90 Minutes
Requires Respondus LockDown Browser
This quiz was locked
Attempt History
Attempt Time Score
LATEST Attempt 1 23 minutes 92 out of 100
Score for this quiz: 92 out of 100
Submitted
This attempt took 23 minutes.
Correct answer
Question 1
pts
Panel 1 below shows a complex fitness function for a phenotype that has heritable variation.
Panel 2 shows frequency distributions for five populations (A, B, C, D, and E). Based on these
panels, what is likely to happen to the phenotypic mean and the variance in Population D?
, The mean will drift over time and the variance will likely increase
No change in the mean, increase in the variance
No change in the mean, decrease in the variance
Increase in the mean, increase in the variance
Increase in the mean, decrease in the variance
Correct answer
Question 2
pts
Mimic fitness increases
when parasites are at high densities
the greater the frequency of models in the population
the greater the frequency of mimics in the population
under increased recombination
Correct answer
Question 3
pts
A selection experiment is applied to increase body size in an experimental population of flies in the
laboratory. The selection differential (S) is very high, and so is the response to selection (R). Based on
this, what do you know to be true?
Body size has high heritability in this environment.
All the responses to this test question are true.
Body size has a strong effect on fitness in nature.
Body size is controlled by few genes having large effect.
Selection on body size is countered by selection on fitness in nature.
Correct answer
