GENETIC EXAM AND ITS
SOLUTIONS
Xeroderma pigmentosum is due to a defective ___.
a. Oncogene
b. Tumor suppressor gene
c. DNA repair mechanism
DNA repair mechanism
Cervical cancer is associated with
a. Epstein-Barr Virus
b. HIV
c. HPV
d. Hepatitis B virus
e. Hepatitis A virus
HPV
Transcriptionally acive DNA is _______ tightly coiled
than DNA that is not being transcribed.
a. Less
b. More
Less
A population was scored for the MN blood type locus.
There were 78 Type M, 458 Type MN, and 155 Type N
individuals in the population. Calculate the frequency
of the M allele in this population.Round your answer
properly to four decimal digits.
.4443
Tongue rolling ability is conferred by the presence of
a dominant R allele. Nonrollers are genotype rr. A
, class of Genetics students consists of 124 rollers and
49 nonrollers. Assume that this population is at Hardy-
Weinberg equilibrium for this locus.
Please round all answers correctly to 4 decimal digits.
What is the frequency of the R allele?
.4678
Classify the gene below as either a tumor suppressor
gene or an oncogene.
The RB gene is a(n)
a. Tumor Suppressor Gene
b. Oncogene
Tumor suppressor gene
Which gene acts like a "fork in the road" in
determining whether a cell is repaired or programmed
for cell death?
a. p53
b. ras
c. APC
d. Palladin
e. RB
p53
High levels of methylation of the base ____ are
associated with low levels of gene activity.
a. Cytosine
b. Adenine
SOLUTIONS
Xeroderma pigmentosum is due to a defective ___.
a. Oncogene
b. Tumor suppressor gene
c. DNA repair mechanism
DNA repair mechanism
Cervical cancer is associated with
a. Epstein-Barr Virus
b. HIV
c. HPV
d. Hepatitis B virus
e. Hepatitis A virus
HPV
Transcriptionally acive DNA is _______ tightly coiled
than DNA that is not being transcribed.
a. Less
b. More
Less
A population was scored for the MN blood type locus.
There were 78 Type M, 458 Type MN, and 155 Type N
individuals in the population. Calculate the frequency
of the M allele in this population.Round your answer
properly to four decimal digits.
.4443
Tongue rolling ability is conferred by the presence of
a dominant R allele. Nonrollers are genotype rr. A
, class of Genetics students consists of 124 rollers and
49 nonrollers. Assume that this population is at Hardy-
Weinberg equilibrium for this locus.
Please round all answers correctly to 4 decimal digits.
What is the frequency of the R allele?
.4678
Classify the gene below as either a tumor suppressor
gene or an oncogene.
The RB gene is a(n)
a. Tumor Suppressor Gene
b. Oncogene
Tumor suppressor gene
Which gene acts like a "fork in the road" in
determining whether a cell is repaired or programmed
for cell death?
a. p53
b. ras
c. APC
d. Palladin
e. RB
p53
High levels of methylation of the base ____ are
associated with low levels of gene activity.
a. Cytosine
b. Adenine
