Rutgers Biology 1 - Exam 2 Questions
and Already Passed Answers
2025/2026 Updated.
Identify chromosome number. An organism with a diploid number of 2n=16 has how many pairs
of homologous chromosomes?
A. 32
B. 8
C. 16
D. 4 - Answer B. 8
DNA molecules migrate through a polyacrylamide gel according to:
A. charge on the phosphate group.
B. restriction site sequence.
C. nucleotide sequence.
D. size; shorter fragments move faster. - Answer D. size; shorter fragments move faster.
Identify which of the following processes use a polymerase.
I. DNA replication
II. PCR
III. Transcription
IV. Translation
A. I, II, III and IV
B. I ONLY
C. I, II and III
D. I and II - Answer C. I, II and III
Canine degenerative myelopathy is an autosomal recessive disease in dogs which causes
degeneration of the spinal cord. You have a dog that appears healthy and want to determine if
she is a carrier for canine degenerative myelopathy. Identify what type of dog should you breed
her with to determine her genotype?
I. Homozygous dominant.
II. Heterozygous.
,III. Homozygous recessive
A. I only
B. I or II
C. II only
D. III only - Answer D. III only
Which of the following are REQUIRED for DNA replication, transcription, PCR, AND dideoxy
chain termination sequencing?
I. Complementary base pairing
II. DNA primers
III. DNA polymerase
IV. RNA nucleotides
A. I and IV
B. III ONLY
C. I ONLY
D. II and III - Answer C. I ONLY
Taxol is an anti-cancer drug that inhibits the formation of the mitotic spindle. Hypothesize which
of the following events could occur NORMALLY in a cell that has been exposed to Taxol.
I. Condensation of chromosomes.
II. Formation of kinetochores.
III. DNA synthesis
IV. Alignment of chromosomes on the metaphase plate.
A. III and IV
B. I and II
C. II and IV
D. I, II and III - Answer D. I, II and III
You are studying gene expression in humans. The gene that you are interested in has the
following pattern: Neither parent expresses the gene. One quarter of sons and one quarter of
daughters express the disease. Hypothesize what type of inheritance COULD this pattern of
expression be?
I. Mendelian.
, II. Sex-linked on the X chromosome.
III. Sex-linked on the Y chromosome.
A. II only
B. III only
C. I only
D. I or II - Answer C. I only
Identify which of the following is the central finding of Thomas Morgan that was different from
what Mendel concluded.
A. Homozygous recessive individuals exhibit recessive phenotypes
B. Genes move on chromosomes, not as individual units
C. Dominant alleles mask recessive alleles
D. Alleles segregate during gamete formation - Answer B. Genes move on chromosomes,
not as individual units
Correctly sequence events that occur during DNA replication.
I. Helicase unwinds the double helix.
II. RNA primer produced.
III. Gaps between fragments in lagging strands are closed.
IV. New DNA strand synthesized by DNA polymerase.
V. Single-strand binding proteins bind to DNA.
A. IV ➔ III ➔ II ➔ I ➔ V
B. I ➔ II➔ IV ➔ V ➔ III
C. III ➔ V ➔ II ➔ IV ➔ I
D. I ➔ V ➔ II ➔ IV ➔ III - Answer D. I ➔ V ➔ II ➔ IV ➔ III
Hypothesize and diagnose patterns of inheritance. If genes A and B are LINKED, and both
dominant alleles were inherited from the same parent, what are the possible gamete genotypes
generated by an individual whose genotype is AaBb?
A. Ab and ab
B. AB and ab
C. AB, Ab, aB, and ab
and Already Passed Answers
2025/2026 Updated.
Identify chromosome number. An organism with a diploid number of 2n=16 has how many pairs
of homologous chromosomes?
A. 32
B. 8
C. 16
D. 4 - Answer B. 8
DNA molecules migrate through a polyacrylamide gel according to:
A. charge on the phosphate group.
B. restriction site sequence.
C. nucleotide sequence.
D. size; shorter fragments move faster. - Answer D. size; shorter fragments move faster.
Identify which of the following processes use a polymerase.
I. DNA replication
II. PCR
III. Transcription
IV. Translation
A. I, II, III and IV
B. I ONLY
C. I, II and III
D. I and II - Answer C. I, II and III
Canine degenerative myelopathy is an autosomal recessive disease in dogs which causes
degeneration of the spinal cord. You have a dog that appears healthy and want to determine if
she is a carrier for canine degenerative myelopathy. Identify what type of dog should you breed
her with to determine her genotype?
I. Homozygous dominant.
II. Heterozygous.
,III. Homozygous recessive
A. I only
B. I or II
C. II only
D. III only - Answer D. III only
Which of the following are REQUIRED for DNA replication, transcription, PCR, AND dideoxy
chain termination sequencing?
I. Complementary base pairing
II. DNA primers
III. DNA polymerase
IV. RNA nucleotides
A. I and IV
B. III ONLY
C. I ONLY
D. II and III - Answer C. I ONLY
Taxol is an anti-cancer drug that inhibits the formation of the mitotic spindle. Hypothesize which
of the following events could occur NORMALLY in a cell that has been exposed to Taxol.
I. Condensation of chromosomes.
II. Formation of kinetochores.
III. DNA synthesis
IV. Alignment of chromosomes on the metaphase plate.
A. III and IV
B. I and II
C. II and IV
D. I, II and III - Answer D. I, II and III
You are studying gene expression in humans. The gene that you are interested in has the
following pattern: Neither parent expresses the gene. One quarter of sons and one quarter of
daughters express the disease. Hypothesize what type of inheritance COULD this pattern of
expression be?
I. Mendelian.
, II. Sex-linked on the X chromosome.
III. Sex-linked on the Y chromosome.
A. II only
B. III only
C. I only
D. I or II - Answer C. I only
Identify which of the following is the central finding of Thomas Morgan that was different from
what Mendel concluded.
A. Homozygous recessive individuals exhibit recessive phenotypes
B. Genes move on chromosomes, not as individual units
C. Dominant alleles mask recessive alleles
D. Alleles segregate during gamete formation - Answer B. Genes move on chromosomes,
not as individual units
Correctly sequence events that occur during DNA replication.
I. Helicase unwinds the double helix.
II. RNA primer produced.
III. Gaps between fragments in lagging strands are closed.
IV. New DNA strand synthesized by DNA polymerase.
V. Single-strand binding proteins bind to DNA.
A. IV ➔ III ➔ II ➔ I ➔ V
B. I ➔ II➔ IV ➔ V ➔ III
C. III ➔ V ➔ II ➔ IV ➔ I
D. I ➔ V ➔ II ➔ IV ➔ III - Answer D. I ➔ V ➔ II ➔ IV ➔ III
Hypothesize and diagnose patterns of inheritance. If genes A and B are LINKED, and both
dominant alleles were inherited from the same parent, what are the possible gamete genotypes
generated by an individual whose genotype is AaBb?
A. Ab and ab
B. AB and ab
C. AB, Ab, aB, and ab
