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Biology 1108 Exams/ University Of Connecticut BIOL 1108 Exams 1-3 (answered) Spring 2023/2024
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Biology 1108 Exams/ University Of Connecticut BIOL 1108 Exams 1-3 (answered) Spring 2023/2024
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Biology 1108 Exams/ University Of Connecticut BIOL 1108 Exams 1-3(answered) Spring 2023/2024
In general, in a sample of n individuals, the frequency of an
allele is: - -----ANSWER---->the number of occurrences of the
allele divided by
twice the number of individuals in the sample (2n)
In a population of Mendel's garden peas, the frequency of
dominant yellow-flowered plants is 50%. The population is in
Hardy-Weinberg equilibrium. From this information alone,
you can determine the allele frequencies (A=p and a=q). T/F
- -----ANSWER---->True.
If a population is not in Hardy-Weinberg equilibrium, we can
conclude that: - -----ANSWER---->evolution has occurred
because one of the assumptions of the Hardy-Weinberg
equilibrium has been violated.
The goldenrod gall fly lays its eggs on the terminal buds of
goldenrod plants. Larvae chew through the buds and into
the stems, where their saliva induces the plant to generate a
gall, or outgrowth of tissue that then provides food and
shelter for the developing larva. The larvae are prey to both
parasitoid wasps and to birds; wasps selectively prey on
larvae inside the smallest galls while birds selectively prey
,on larvae inside the largest galls. Golden gall flies are
therefore subject to: - -----ANSWER---->stabilizing selection
Which big sagebrush plant is the most fit, based on the
information presented? - -----ANSWER---->The individual that
produces 3% more offspring each year than others in its
population.
On a hike through the forest, you notice a population of 100
flowering plants that all look identical (phenotypic clones).
They span an area of approximately 100 square meters. You
take some representatives from one corner of their
distribution back to the lab, sequence their DNA and
conclude that they are genetoc clones. T/F.
This population can evolve.
This population can only evolve through genetic drift.
This population can only evolve through natural selection. - -
----ANSWER---->True.
False.
False.
You find that a wild population of antelope is not in HWE.
From this information alone, can you determine the
mechanism of evolution operating on the population? - -----
ANSWER---->No, HWE does not inform us as to the
mechanism of evolutionary change, it only informs us as to
whether or not evolution is happening.
, The only evolutionary process that leads to adaptive change
is: - -----ANSWER---->natural selection
What does it mean to say that an allele is "fixed" in the
population? - -----ANSWER---->It is an indication of no
genetic variation at that locus in the population.
Two organisms are part of the same population if: - -----
ANSWER---->they are the same species and are in the same
geographic area.
Why can't we measure genetic variation in a population
using phenotypes? - -----ANSWER---->The environment can
also affect the phenotype.
A snowshoe hare produces a white coat during the winter,
allowing it to better hide from predators. White-coated
hares have thrived and a majority of snowshoe hares in the
population now produce white coats. Based on this, which
of the following statements are definitely true? - -----
ANSWER---->The alleles for a white winter coat increased
over time.
According to the BCS (Biological Species Concept), two
individuals are members of the same species if: - -----
ANSWER---->they can produce fertile offspring.
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