BIO 183 EXAM 3 | COMPREHENSIVE BIOLOGY STUDY
GUIDE, PRACTICE QUESTIONS & ANSWERS 2026/2027
1 of 120
Definition
(Match the genetic term to its description)
condition when both alleles for a trait are the same
Give this one a go later!
allele core promoter
homozygous vivparous
Don't know?
2 of 120
,Term
In prokayotes, translation can occur while transcription is still in
progress.
Give this one a go later!
Which of the following is a way in which oogenesis differs from spermatogenesis?
A) Fewer nutrients are stored by cells in oogenesis.
B) In oogenesis the first meiotic division is arrested while the cell accumulates
nutrients.
C) Eggs, but not sperm, are produced by the process of meiosis.
D) The "parent" cell divides more times before entering meiosis in oogenesis.
E) The cells produced by oogenesis are smaller than those produced by
spermatogenesis.
Which of the following is true of gastrulation?
A) It is a stage in which the embryonic genes are hidden.
B) It does not occur by cell ingression through the "primitive streak" in bird and
mammalian embryos.
C) It establishes the ectoderm, mesoderm, and endoderm
D) It is a stage in which the rate of cell division is faster than during cleavage.
Which of the following is a way in which the gene expression of prokaryotes
differs from that of
eukaryotes?
A) RNA processing is a more important regulatory step for prokaryotes.
B) In prokayotes, translation can occur while transcription is still in progress.
C) In prokarytoes, but not eukaryotes, translation is the most important level of
regulation.
D) Prokaryotes do not utilize operons in gene regulation.
, E) In prokaryotes, but not eukaryotes, transcription is the most important level
of regulation.
Which of the following is true of exons?
A) They regulate the rate of protein synthesis.
B) They regulate the degradation rate of mRNA.
C) They provide places for RNA polymerase to attach during transcription.
D) They are regions of pre-mRNA that are removed during a processing step.
E) They are regions of pre-mRNA that are spliced together to form mature mRNA.
Don't know?
3 of 120
Definition
The image below shows a cross between pea plants with
yellow, round seeds. In terms of Mendelian genetics, this
type of cross is called a
A) cross to determine cross-over rate.
B) none of these
C) monohybrid cross.
D) cross to determine gene linkage.
E) dihybrid cross.
Give this one a go later!
polar body number 1
, Like the flowers in case 3 dihybrid cross
Don't know?
4 of 120
Definition
Which of the following is true of mutations?
A) A mutation is any change within the genetic material of a cell (in the
germ line or the somatic cells).
B) Mutations require a major change in chromosome structure.
C) Mutations that cause a "frameshift" during transcription are usually
not harmful.
D) Mutations that occur during embryonic development will not be
expressed in any cells of the adult.
E) Only mutations in somatic cells can be passed to offspring.
Give this one a go later!
A mutation is any change within
In prokayotes, translation can occur the genetic material of a cell (in
while transcription is still in progress. the germ line or the somatic
cells).
The meiotic divisions in oogenesis They are parts of the chromosomes
produce daughter cells of unequal that become shorter each time the
size. cell divides
GUIDE, PRACTICE QUESTIONS & ANSWERS 2026/2027
1 of 120
Definition
(Match the genetic term to its description)
condition when both alleles for a trait are the same
Give this one a go later!
allele core promoter
homozygous vivparous
Don't know?
2 of 120
,Term
In prokayotes, translation can occur while transcription is still in
progress.
Give this one a go later!
Which of the following is a way in which oogenesis differs from spermatogenesis?
A) Fewer nutrients are stored by cells in oogenesis.
B) In oogenesis the first meiotic division is arrested while the cell accumulates
nutrients.
C) Eggs, but not sperm, are produced by the process of meiosis.
D) The "parent" cell divides more times before entering meiosis in oogenesis.
E) The cells produced by oogenesis are smaller than those produced by
spermatogenesis.
Which of the following is true of gastrulation?
A) It is a stage in which the embryonic genes are hidden.
B) It does not occur by cell ingression through the "primitive streak" in bird and
mammalian embryos.
C) It establishes the ectoderm, mesoderm, and endoderm
D) It is a stage in which the rate of cell division is faster than during cleavage.
Which of the following is a way in which the gene expression of prokaryotes
differs from that of
eukaryotes?
A) RNA processing is a more important regulatory step for prokaryotes.
B) In prokayotes, translation can occur while transcription is still in progress.
C) In prokarytoes, but not eukaryotes, translation is the most important level of
regulation.
D) Prokaryotes do not utilize operons in gene regulation.
, E) In prokaryotes, but not eukaryotes, transcription is the most important level
of regulation.
Which of the following is true of exons?
A) They regulate the rate of protein synthesis.
B) They regulate the degradation rate of mRNA.
C) They provide places for RNA polymerase to attach during transcription.
D) They are regions of pre-mRNA that are removed during a processing step.
E) They are regions of pre-mRNA that are spliced together to form mature mRNA.
Don't know?
3 of 120
Definition
The image below shows a cross between pea plants with
yellow, round seeds. In terms of Mendelian genetics, this
type of cross is called a
A) cross to determine cross-over rate.
B) none of these
C) monohybrid cross.
D) cross to determine gene linkage.
E) dihybrid cross.
Give this one a go later!
polar body number 1
, Like the flowers in case 3 dihybrid cross
Don't know?
4 of 120
Definition
Which of the following is true of mutations?
A) A mutation is any change within the genetic material of a cell (in the
germ line or the somatic cells).
B) Mutations require a major change in chromosome structure.
C) Mutations that cause a "frameshift" during transcription are usually
not harmful.
D) Mutations that occur during embryonic development will not be
expressed in any cells of the adult.
E) Only mutations in somatic cells can be passed to offspring.
Give this one a go later!
A mutation is any change within
In prokayotes, translation can occur the genetic material of a cell (in
while transcription is still in progress. the germ line or the somatic
cells).
The meiotic divisions in oogenesis They are parts of the chromosomes
produce daughter cells of unequal that become shorter each time the
size. cell divides
