Bio 181 Grand Canyon University Exam 3 || Most
Recent Exam 2026-2027 Actual Complete Real Exam
Questions And Correct Answers (Verified Answers)
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Which of the following is the meaning of the chromosome
theory of inheritance as expressed in the early 20th century?
a) individuals inherit particular chromosomes attached to
genes
b) mendelian genes are at specific loci on the chromosome and
in turn segregate during meiosis
c) homologous chromosomes give rise to some genes and
crossover chromosomes to other genes
d) no more than a single pair of chromosomes can be found in
a healthy normal cell
e) natural selection acts on certain chromosome arrays rather
than on genes - ANSWER-b) mendelian genes are at specific
loci on the chromosome and in turn segregate during meiosis
When Thomas Hunt Morgan crossed his red-eyed F1
generation flies to each other, the F2 generation included both
red- and white-eyed flies. Remarkably, all the white-eyed flies
, were male. What was the explanation for this result? -
ANSWER-the gene involved is on the X chromosome
Which of the following statements is true of linkage?
a) the closer two genes are on a chromosome, the lower the
probability that a crossover will occur between them
b) the observed frequency of recombination of two genes that
are far apart from each other has a maximum value of 100%
c) all of the traits that mendel studied-seed color, pod shape,
flower color, and others-are due to genes linked on the same
chromosome
d) linked genes are found on different chromosomes
e) crossing over occurs during prophase II of meiosis -
ANSWER-a) the closer two genes are on a chromosome, the
lower the probability that a crossover will occur between them
What does a frequency of recombination of 50% indicate?
a) the two genes are likely to be located on different
chromosomes
b) all of the offspring have combinations of traits that match
one of the two parents
c) the genes are located on sex chromosomes
d) abnormal meiosis has occurred
Recent Exam 2026-2027 Actual Complete Real Exam
Questions And Correct Answers (Verified Answers)
Already Graded A+ |Guaranteed Success!! Newest
Exam | Just Released!!
Which of the following is the meaning of the chromosome
theory of inheritance as expressed in the early 20th century?
a) individuals inherit particular chromosomes attached to
genes
b) mendelian genes are at specific loci on the chromosome and
in turn segregate during meiosis
c) homologous chromosomes give rise to some genes and
crossover chromosomes to other genes
d) no more than a single pair of chromosomes can be found in
a healthy normal cell
e) natural selection acts on certain chromosome arrays rather
than on genes - ANSWER-b) mendelian genes are at specific
loci on the chromosome and in turn segregate during meiosis
When Thomas Hunt Morgan crossed his red-eyed F1
generation flies to each other, the F2 generation included both
red- and white-eyed flies. Remarkably, all the white-eyed flies
, were male. What was the explanation for this result? -
ANSWER-the gene involved is on the X chromosome
Which of the following statements is true of linkage?
a) the closer two genes are on a chromosome, the lower the
probability that a crossover will occur between them
b) the observed frequency of recombination of two genes that
are far apart from each other has a maximum value of 100%
c) all of the traits that mendel studied-seed color, pod shape,
flower color, and others-are due to genes linked on the same
chromosome
d) linked genes are found on different chromosomes
e) crossing over occurs during prophase II of meiosis -
ANSWER-a) the closer two genes are on a chromosome, the
lower the probability that a crossover will occur between them
What does a frequency of recombination of 50% indicate?
a) the two genes are likely to be located on different
chromosomes
b) all of the offspring have combinations of traits that match
one of the two parents
c) the genes are located on sex chromosomes
d) abnormal meiosis has occurred
