Page 1 of 105
Genetics Exam Quiz Questions Latest Exam Solved
Questions & Answers Verified 100% Graded A+ (Latest
Version) Well Revised Guarantee Pass
If a disease is associated with copy number variation, that suggests that it is
caused by the presence of?
A. a duplicated or deleted copy of a gene
B. a much longer version of a gene
C. mRNA transcripts missing the translation STOP sequence
D. extra telomeres
A. a duplicated or deleted copy of a gene
Robertsonian translocation usually occur between what types of
chromosomes?
A. telocentric
B. metacentric
C. acrocentric
D. submetacentric
C. acrocentric
A selective breeding program is trying to develop an agricultural plant with
decreased stem length to aid in mechanical harvesting. The mean stem height
of the population is 36 cm while the mean stem height of the parents is 30 cm
and the mean stem height of the offspring is 33 cm. What is the realized
heritability for stem height in this crop?
A. 0.33
B. 0
C. 1
D. 0.5
D. 0.5
Explanation: Realized heritability is calculated by the formula hN2 = R/S
, Page 2 of 105
Where R is the difference between the mean of the offspring and the mean of the
starting population and S is the difference between the mean of the parents and the
mean of the starting population.
hN2 = (33-36)/(30-36) = -3/-6 = 0.5.
A phenotypically normal person is having fertility issues. They consult a
geneticist. Their karyotype shows they have 45 chromosomes. Which of the
following is the most likely cause of their chromosome abnormality?
A. Inversion
B Robertsonian translocation
C. Partial deletion
D. Balanced translocation
Robertsonian translocation
The site on a plasmid that is cut, producing a single strand of DNA, to allow
conjugation to occur is called the ____________.
A. relaxase
B. origin of transfer
C. nucleoprotein
D. T DNA
B. origin of transfer
Bacterial cells that can participate in ______ are known as competent cells.
A. transduction
B. fission
C. conjugation
D. transformation
D. transformation
If the origin of transfer was located directly to the right of the galE gene on this
map of the E. coli chromosome, and gene transfer proceeded
counterclockwise, how many minutes after the galE gene was transferred
would the dnaB gene be transferred in an interrupted mating experiment?
A. 75 minutes
, Page 3 of 105
B. 16 minutes
C. 25 minutes
D. 107 minutes
C. 25 minutes
Which of the following is NOT true regarding bacterial genetics?
A. DNA is transferred between individuals by either conjugation, transduction,
or transformation.
B. Bacteria are usually haploid organisms.
C. Bacteria primarily reproduce asexually.
D. The patterns of inheritance in bacteria are studied using the same
techniques as eukaryotic organisms.
D. The patterns of inheritance in bacteria are studied using the same techniques as
eukaryotic organisms.
Which does not require any recombination with the bacterial chromosome?
A. transduction
B. transformation
C. conjugation
C. conjugation
After conjugation, the enzyme that rejoins the ends of the linear DNA into a
circular plasmid is called _________.
A. relaxase
B. F factor
C. nucleoprotein
D. relaxosome
A. relaxase
DNA transfer by transduction depends on what occasional mistake that can
occur during a phage lytic cycle?
A. A piece of host cell DNA is packaged into a phage.
B. The phage and bacterial genome fragments recombine.
, Page 4 of 105
C. The hose cell undergoes lysis before any new phages are produced.
D. A host cell protein is incorporated into a phage.
A. A piece of host cell DNA is packaged into a phage.
In experiments, interrupted mating may be used to
A. alter the genotype of the donor cell.
B. determine the relative position of genes.
C. generate loss of function alleles.
D. inhibit transduction.
B. determine the relative position of genes.
DNA transfer via a physical connection between two bacteria is known as
A. fission.
B. transformation.
C. transduction.
D. conjugation.
D. conjugation
Given the following sequence of genes on a chromosome, determine what
change in chromosome structure occurred. The asterisk () indicates the
centromere.Before: A B C D E F G HAfter: A C D * E F G H
interstitial deletion
Genetic drift has the greatest influence on allele frequencies for which
population size?
A. Genetic drift has the same impact on both large and small populations.
B. large
C. small
D. Genetic drift has no effect on the allele frequencies
C. small
The mechanism that results in a change in allele frequencies due to random
processes is known as?
A. genetic drift
B. natural selection
C. migration
D. non random mating
Genetics Exam Quiz Questions Latest Exam Solved
Questions & Answers Verified 100% Graded A+ (Latest
Version) Well Revised Guarantee Pass
If a disease is associated with copy number variation, that suggests that it is
caused by the presence of?
A. a duplicated or deleted copy of a gene
B. a much longer version of a gene
C. mRNA transcripts missing the translation STOP sequence
D. extra telomeres
A. a duplicated or deleted copy of a gene
Robertsonian translocation usually occur between what types of
chromosomes?
A. telocentric
B. metacentric
C. acrocentric
D. submetacentric
C. acrocentric
A selective breeding program is trying to develop an agricultural plant with
decreased stem length to aid in mechanical harvesting. The mean stem height
of the population is 36 cm while the mean stem height of the parents is 30 cm
and the mean stem height of the offspring is 33 cm. What is the realized
heritability for stem height in this crop?
A. 0.33
B. 0
C. 1
D. 0.5
D. 0.5
Explanation: Realized heritability is calculated by the formula hN2 = R/S
, Page 2 of 105
Where R is the difference between the mean of the offspring and the mean of the
starting population and S is the difference between the mean of the parents and the
mean of the starting population.
hN2 = (33-36)/(30-36) = -3/-6 = 0.5.
A phenotypically normal person is having fertility issues. They consult a
geneticist. Their karyotype shows they have 45 chromosomes. Which of the
following is the most likely cause of their chromosome abnormality?
A. Inversion
B Robertsonian translocation
C. Partial deletion
D. Balanced translocation
Robertsonian translocation
The site on a plasmid that is cut, producing a single strand of DNA, to allow
conjugation to occur is called the ____________.
A. relaxase
B. origin of transfer
C. nucleoprotein
D. T DNA
B. origin of transfer
Bacterial cells that can participate in ______ are known as competent cells.
A. transduction
B. fission
C. conjugation
D. transformation
D. transformation
If the origin of transfer was located directly to the right of the galE gene on this
map of the E. coli chromosome, and gene transfer proceeded
counterclockwise, how many minutes after the galE gene was transferred
would the dnaB gene be transferred in an interrupted mating experiment?
A. 75 minutes
, Page 3 of 105
B. 16 minutes
C. 25 minutes
D. 107 minutes
C. 25 minutes
Which of the following is NOT true regarding bacterial genetics?
A. DNA is transferred between individuals by either conjugation, transduction,
or transformation.
B. Bacteria are usually haploid organisms.
C. Bacteria primarily reproduce asexually.
D. The patterns of inheritance in bacteria are studied using the same
techniques as eukaryotic organisms.
D. The patterns of inheritance in bacteria are studied using the same techniques as
eukaryotic organisms.
Which does not require any recombination with the bacterial chromosome?
A. transduction
B. transformation
C. conjugation
C. conjugation
After conjugation, the enzyme that rejoins the ends of the linear DNA into a
circular plasmid is called _________.
A. relaxase
B. F factor
C. nucleoprotein
D. relaxosome
A. relaxase
DNA transfer by transduction depends on what occasional mistake that can
occur during a phage lytic cycle?
A. A piece of host cell DNA is packaged into a phage.
B. The phage and bacterial genome fragments recombine.
, Page 4 of 105
C. The hose cell undergoes lysis before any new phages are produced.
D. A host cell protein is incorporated into a phage.
A. A piece of host cell DNA is packaged into a phage.
In experiments, interrupted mating may be used to
A. alter the genotype of the donor cell.
B. determine the relative position of genes.
C. generate loss of function alleles.
D. inhibit transduction.
B. determine the relative position of genes.
DNA transfer via a physical connection between two bacteria is known as
A. fission.
B. transformation.
C. transduction.
D. conjugation.
D. conjugation
Given the following sequence of genes on a chromosome, determine what
change in chromosome structure occurred. The asterisk () indicates the
centromere.Before: A B C D E F G HAfter: A C D * E F G H
interstitial deletion
Genetic drift has the greatest influence on allele frequencies for which
population size?
A. Genetic drift has the same impact on both large and small populations.
B. large
C. small
D. Genetic drift has no effect on the allele frequencies
C. small
The mechanism that results in a change in allele frequencies due to random
processes is known as?
A. genetic drift
B. natural selection
C. migration
D. non random mating
