BIO-152 EXAM 1 VCU WITH
CORRECT ANSWERS 2025
What has an impact on the rate at which mutations occur?
correct answers >> The number of times DNA is replicated,
frequency of cell division, size of genome
A ___________ mutation originates during meiosis, while a _______
mutation originates during mitosis correct answers >> germ-
line, somatic
_________ evolution occurs when _______ related species become
different over time and __________ evolution occurs when _________
related species become more similar over time correct
answers >> divergent, closely, convergent, distantly
What contributes to the theory of evolution? correct answers
>> Anatomical structures that appear to be modified version
from a common ancestor, patterns in fossil record, biogeographic
patterns in dist. of a species
What must be true in order for individuals best suited for growth
and reproduction to contribute disproportionately to the next
generation? correct answers >> favorable traits that can be
inherited, and genetic variation within populations
An _________ mutation occurs when part of a chromosome breaks
and is reinserted backwards correct answers >> inversion
, _______ _________ uses random genetic changes, it cannot
anticipate future needs correct answers >> Natural Selection
Evolutionary changes = correct answers >> Increased ability
of a species to survive and reproduce in a specific environment
_________ are the ultimate source of genetic variation correct
answers >> mutations
Shared fundamental features at the level of molecular function
and cell organization indicate that correct answers >>
organisms came from a common ancestor
These are examples of:
wing of a bird and bat wing
octupus eye and human eye correct answers >> analogous
structures
__________ _________ means organisms are unrelated, but have
similar adaptations correct answers >> convergent evolution
What would happen if a frameshift mutation causes a stop codon
to be inserted into a DNA sequence? correct answers >> the
resulting protein may be too short and non-functional
Whether or not a trait is favorable depends on correct answers
>> the environmental conditions at the time and thus the same
traits are not always selected
CORRECT ANSWERS 2025
What has an impact on the rate at which mutations occur?
correct answers >> The number of times DNA is replicated,
frequency of cell division, size of genome
A ___________ mutation originates during meiosis, while a _______
mutation originates during mitosis correct answers >> germ-
line, somatic
_________ evolution occurs when _______ related species become
different over time and __________ evolution occurs when _________
related species become more similar over time correct
answers >> divergent, closely, convergent, distantly
What contributes to the theory of evolution? correct answers
>> Anatomical structures that appear to be modified version
from a common ancestor, patterns in fossil record, biogeographic
patterns in dist. of a species
What must be true in order for individuals best suited for growth
and reproduction to contribute disproportionately to the next
generation? correct answers >> favorable traits that can be
inherited, and genetic variation within populations
An _________ mutation occurs when part of a chromosome breaks
and is reinserted backwards correct answers >> inversion
, _______ _________ uses random genetic changes, it cannot
anticipate future needs correct answers >> Natural Selection
Evolutionary changes = correct answers >> Increased ability
of a species to survive and reproduce in a specific environment
_________ are the ultimate source of genetic variation correct
answers >> mutations
Shared fundamental features at the level of molecular function
and cell organization indicate that correct answers >>
organisms came from a common ancestor
These are examples of:
wing of a bird and bat wing
octupus eye and human eye correct answers >> analogous
structures
__________ _________ means organisms are unrelated, but have
similar adaptations correct answers >> convergent evolution
What would happen if a frameshift mutation causes a stop codon
to be inserted into a DNA sequence? correct answers >> the
resulting protein may be too short and non-functional
Whether or not a trait is favorable depends on correct answers
>> the environmental conditions at the time and thus the same
traits are not always selected
