Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 20, Problem 8RQ
Which statement about analogies is correct?
- They occur only as errors
- They are synonymous with homologous traits.
- They are derived by similar environmental constraints.
- They are a form of mutation.
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Which of the following refers, specifically, to a trait that is modified (mutated genetically) from a previous form?
Group of answer choices
derived trait
primitive trait
homologous trait
ancestral trait
vestigial trait
Which statement about analogies is correct? a. They occur only as errors. b. They are synonymous with homologous traits. c. They are derived by similar environmental constraints. d. They are a form of mutation.
At the edge of the Arctic Circle, owls prey on field mice. Occasionally, in a litter of white field mice, a brown mouse appears. Because of greenhouse warming, the snow melts, changing the environment to shades of brown.
The adaptations which allow survival and reproduction of a certain color of mice in the new environment is due to:
variation.
lethal mutations.
acquired traits.
isolation.
Chapter 20 Solutions
Biology 2e
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
Which of the following is the only correct pairing for two concepts that mean the same thing?
Homologous trait – independently evolved
Shared derived trait – shared ancestral trait
Common origin – convergent evolution
Independent origin – convergent evolution
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The most important feature that enables a gene to act as a molecular clock is
Group of answer choices:
a recent origin by a gene duplication event
a large number of base pairs in the genome
being acted upon by natural selection
a reliable average rate of mutation
arrow_forward
The ABO bloodtype system is of anthropological interest because it is an example of a(n) _________ _________ with three alleles that vary among human populations in frequencies that follow a clinal distribution
Group of answer choices
phenotypic variant
gene pool
DNA mutation
human polymorphism
acclimated response
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Which of these results in the acquisition of a characteristic that promotes adaptability?
Natural selection
Genetic drift
Gene flow
Phenotypes
All of the above
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Evolution may be divergent (traits differ over time) or convergent (different species evolve similar traits, separately
Group of answer choices
True
False
arrow_forward
When genes from two parents mix together to form the genes of their child, this is called…
Group of answer choices
evolution
resequencing
mutation
natural selection
recombination
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What is NOT true about mutations?
Group of answer choices
Without mutations, there would be no genetic variation
Mutations are usually deleterious
Mutations are a relatively weak force of evolution
Mutations are always balanced with natural selection
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Mutations are the raw material for evolutionary change, without mutations there could be no new variations among members of a population.
Group of answer choices
True or false
arrow_forward
Derived traits are essentially mutations that were selected for (by natural selection) and thus subsequently passed on to subsequent generations which allows us to conduct cladistic analyses.
Group of answer choices
True
False
arrow_forward
How does the mutation related to the traits including diseases that are being inherited by the offspring from their parents? Give a little
background, assumption/hypotheses, data collection and data analysis and form conclusions.
arrow_forward
Which of the following statements accurately describes genetic mutations? *
Mutations are a natural process that increases genetic diversity.
Mutations are an unnatural process that always affect the phenotype.
Mutations are an unnatural process that are always harmful.
Mutations are a natural process that only effects genotype, not phenotype.
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What is the importance of detecting common ancestry?
Topic is about evolution answer has something to do to know that species or organism are related
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