UARK POB SHADWICK FINAL EXAM
{LATEST 2026 -2027 update} QUESTIONS
AND ANSWERS 100% CORRECT
A systematist includes a lizard in a phylogenetic analysis of relationships among bird
families. In this analysis, the lizard would be treated as _____. - correct answer the
outgroup
Which of the following options correctly represents the most likely sequence of the
evolution of plants, from earliest to most recent? - correct answer bryophytes,
seedless vascular plants, gymnosperms, angiosperms
Chemoautotrophic bacteria obtain their carbon from ________ and their energy from
________. - correct answer CO2; reactions involving inorganic chemicals
,Fungi are found associated with the earliest plant fossils. Fungi may have helped
plants become terrestrial by _____. - correct answer forming mycorrhizal associations
with plants and by decomposing organic matter
From what organism(s) will DNA be extracted? - correct answer Strawberries
During cell division, what role do centrosomes play? - correct answer They organize
the microtubules.--
The centrosomes are the microtubule-organizing centers of the cell.
Place the following steps in the correct order to represent the processes involved in
gene expression--transcription and translation. - correct answer beginning at the top
left, going counter-clockwise:
-DNA in nucleus serves as a template for mrna
-mrna is processed before leaving the nucleus
,-polypeptide synthesis takes place one amino acid at a time
-anticodon-codon complimentary base pairing occurs
-trnas with anticodons carry amino acids to mrna
-mrna moves into the cytoplasm and becomes associated with ribosomes
Why is DNA extraction and isolation an important laboratory technique? - correct
answer DNA extraction is an early step in many frequently used research and
diagnostic laboratory procedures.
Because the woman will transmit a normal allele to the child, the child will not be
affected; however, there is a 50% chance that the child will inherit a Tay-Sachs allele
from the father and thus be a carrier.
, If you cross two heterozygous (Yy) pea plants, what proportion of the offspring will be
heterozygous? - correct answer 50%
Genetic differences between populations tend to be reduced by _____. - correct answer
gene flow--Gene flow allows alleles to be freely transferred between populations
making them more similar to each other.
Gene flow tends to increase or decrease variation within a population while decreasing
variation among different populations, therefore it often has a stabilizing effect on the
overall diversity of living things. - correct answer true
In the normal course of evolution and adaptation, what is the most likely way for wings
to develop in a tetrapod (four-limbed organism)? - correct answer The forelimbs (or
possibly hind limbs) will be used for the new purpose of flight. This new function will
{LATEST 2026 -2027 update} QUESTIONS
AND ANSWERS 100% CORRECT
A systematist includes a lizard in a phylogenetic analysis of relationships among bird
families. In this analysis, the lizard would be treated as _____. - correct answer the
outgroup
Which of the following options correctly represents the most likely sequence of the
evolution of plants, from earliest to most recent? - correct answer bryophytes,
seedless vascular plants, gymnosperms, angiosperms
Chemoautotrophic bacteria obtain their carbon from ________ and their energy from
________. - correct answer CO2; reactions involving inorganic chemicals
,Fungi are found associated with the earliest plant fossils. Fungi may have helped
plants become terrestrial by _____. - correct answer forming mycorrhizal associations
with plants and by decomposing organic matter
From what organism(s) will DNA be extracted? - correct answer Strawberries
During cell division, what role do centrosomes play? - correct answer They organize
the microtubules.--
The centrosomes are the microtubule-organizing centers of the cell.
Place the following steps in the correct order to represent the processes involved in
gene expression--transcription and translation. - correct answer beginning at the top
left, going counter-clockwise:
-DNA in nucleus serves as a template for mrna
-mrna is processed before leaving the nucleus
,-polypeptide synthesis takes place one amino acid at a time
-anticodon-codon complimentary base pairing occurs
-trnas with anticodons carry amino acids to mrna
-mrna moves into the cytoplasm and becomes associated with ribosomes
Why is DNA extraction and isolation an important laboratory technique? - correct
answer DNA extraction is an early step in many frequently used research and
diagnostic laboratory procedures.
Because the woman will transmit a normal allele to the child, the child will not be
affected; however, there is a 50% chance that the child will inherit a Tay-Sachs allele
from the father and thus be a carrier.
, If you cross two heterozygous (Yy) pea plants, what proportion of the offspring will be
heterozygous? - correct answer 50%
Genetic differences between populations tend to be reduced by _____. - correct answer
gene flow--Gene flow allows alleles to be freely transferred between populations
making them more similar to each other.
Gene flow tends to increase or decrease variation within a population while decreasing
variation among different populations, therefore it often has a stabilizing effect on the
overall diversity of living things. - correct answer true
In the normal course of evolution and adaptation, what is the most likely way for wings
to develop in a tetrapod (four-limbed organism)? - correct answer The forelimbs (or
possibly hind limbs) will be used for the new purpose of flight. This new function will
