Rutgers Bio 115 Exam Actual Questions and
Verified Answers
Question 1
Compare and contrast DNA, RNA, and ddDNA. Which of the following statements
regarding nucleotides is/are TRUE?
I. DNA strands in human cells often include dideoxy nucleotides
II. Both thymine and uracil nucleotides are normally found in a prokaryotic cytosol
III. Dideoxy nucleotides contain 1 fewer hydroxyl groups than DNA nucleotides
IV. Elongation does NOT occur with RNA nucleotides
A. I, II, and IV
B. II and III
C. I, III, and IV
D. III and IV5
Correct Answer
B. II and III
Question 2
A malfunction in the thermocycler used for PCR resulted in the temperature
remaining unchanged at 91 ͦC. What effect would you expect this to have on the PCR
process?
A. Taq DNA polymerase will be denatured
B. The primers will be broken down
C. The primers will not anneal properly
D. The strands of DNA will not separate
Correct Answer
C. The primers will not anneal properly
Page 1 of 141
,Question 3
Sequence the process of meiosis. You have found a plant cell that has a ploidy of 20n
and 2000 chromosomes. A cell from this plant in metaphase II has a ploidy of
______________ and the number of chromosomes is ___________.
A. 20n, 2000
B. 20n, 1000
C. 10n, 500
D. 10n, 1000
Correct Answer
D. 10n, 1000
Question 4
Compare and contrast the Oparin-Haldane (prebiotic soup) hypothesis and the iron-
sulfur world hypothesis. Which of the following do both hypotheses SHARE?
I. Result in the formation of monomers
II. Require a source of energy
III. Require low free O2
IV. Require the formation of phospholipids
A. II, III, and IV
B. I and IV
C. II and III
D. I, II, and III
Correct Answer
D. I, II, and III
Page 2 of 141
,Question 5
Compare and contrast positive and negative regulation of the lac operon. Which of
the following are aspects of positive regulation?
I. lac genes are only transcribed in the presence of lactose.
II. Allolactose binds to the repressor.
III. Rising cAMP levels activates CAP.
IV. CAP activates and binds to the DNA.
A. III and IV
B. II and IV
C. I and III
D. I and II
Correct Answer
A. III and IV
Question 6
A sequence of one DNA strand is: 3' A A T G G C T A C 5', Identify the correct
sequence of the complementary DNA strand.
A. 5' A A T G G C T A C 3'
B. 5' U U A C C G A U G 3'
C. 3' G A T C G G T A A 5'
D. 5' T T A C C G A T G 3'
Correct Answer
D. 5' T T A C C G A T G 3'
Page 3 of 141
, Question 7
Identify which of the follow are TRUE concerning long-term and short-term memory?
I. Long-term memory is limited in capacity
II. Both are longer in duration than sensory memory storage
III. Short-term memory is unlimited in capacity
IV. Long-term memory is unlimited in duration
A. II and IV
B. I, II and III
C. I and IV
D. I and III
Correct Answer
A. II and IV
Question 8
Identify which of the following is TRUE of dominant and recessive alleles.
A. Dominant and recessive alleles are never found in the same individual
B. Dominant alleles will mask the presence of recessive alleles
C. When both are present, the resulting phenotype is a combination of the two
D. Only dominant alleles can determine phenotype
Correct Answer
B. Dominant alleles will mask the presence of recessive alleles
Question 9
Compare and contrast biological molecules. Maltose is a sugar used inside of a cell. It
consists of two alpha glucose molecules. Which statement correctly describes
maltose?
A. The two components are joined by a peptide bond.
B. The two components were joined during a dehydration synthesis.
C. A water molecule is removed to hydrolyze the molecule
D. It is synthesized in a free ribosome.
Correct Answer
B. The two components were joined during a dehydration synthesis.
Page 4 of 141
Verified Answers
Question 1
Compare and contrast DNA, RNA, and ddDNA. Which of the following statements
regarding nucleotides is/are TRUE?
I. DNA strands in human cells often include dideoxy nucleotides
II. Both thymine and uracil nucleotides are normally found in a prokaryotic cytosol
III. Dideoxy nucleotides contain 1 fewer hydroxyl groups than DNA nucleotides
IV. Elongation does NOT occur with RNA nucleotides
A. I, II, and IV
B. II and III
C. I, III, and IV
D. III and IV5
Correct Answer
B. II and III
Question 2
A malfunction in the thermocycler used for PCR resulted in the temperature
remaining unchanged at 91 ͦC. What effect would you expect this to have on the PCR
process?
A. Taq DNA polymerase will be denatured
B. The primers will be broken down
C. The primers will not anneal properly
D. The strands of DNA will not separate
Correct Answer
C. The primers will not anneal properly
Page 1 of 141
,Question 3
Sequence the process of meiosis. You have found a plant cell that has a ploidy of 20n
and 2000 chromosomes. A cell from this plant in metaphase II has a ploidy of
______________ and the number of chromosomes is ___________.
A. 20n, 2000
B. 20n, 1000
C. 10n, 500
D. 10n, 1000
Correct Answer
D. 10n, 1000
Question 4
Compare and contrast the Oparin-Haldane (prebiotic soup) hypothesis and the iron-
sulfur world hypothesis. Which of the following do both hypotheses SHARE?
I. Result in the formation of monomers
II. Require a source of energy
III. Require low free O2
IV. Require the formation of phospholipids
A. II, III, and IV
B. I and IV
C. II and III
D. I, II, and III
Correct Answer
D. I, II, and III
Page 2 of 141
,Question 5
Compare and contrast positive and negative regulation of the lac operon. Which of
the following are aspects of positive regulation?
I. lac genes are only transcribed in the presence of lactose.
II. Allolactose binds to the repressor.
III. Rising cAMP levels activates CAP.
IV. CAP activates and binds to the DNA.
A. III and IV
B. II and IV
C. I and III
D. I and II
Correct Answer
A. III and IV
Question 6
A sequence of one DNA strand is: 3' A A T G G C T A C 5', Identify the correct
sequence of the complementary DNA strand.
A. 5' A A T G G C T A C 3'
B. 5' U U A C C G A U G 3'
C. 3' G A T C G G T A A 5'
D. 5' T T A C C G A T G 3'
Correct Answer
D. 5' T T A C C G A T G 3'
Page 3 of 141
, Question 7
Identify which of the follow are TRUE concerning long-term and short-term memory?
I. Long-term memory is limited in capacity
II. Both are longer in duration than sensory memory storage
III. Short-term memory is unlimited in capacity
IV. Long-term memory is unlimited in duration
A. II and IV
B. I, II and III
C. I and IV
D. I and III
Correct Answer
A. II and IV
Question 8
Identify which of the following is TRUE of dominant and recessive alleles.
A. Dominant and recessive alleles are never found in the same individual
B. Dominant alleles will mask the presence of recessive alleles
C. When both are present, the resulting phenotype is a combination of the two
D. Only dominant alleles can determine phenotype
Correct Answer
B. Dominant alleles will mask the presence of recessive alleles
Question 9
Compare and contrast biological molecules. Maltose is a sugar used inside of a cell. It
consists of two alpha glucose molecules. Which statement correctly describes
maltose?
A. The two components are joined by a peptide bond.
B. The two components were joined during a dehydration synthesis.
C. A water molecule is removed to hydrolyze the molecule
D. It is synthesized in a free ribosome.
Correct Answer
B. The two components were joined during a dehydration synthesis.
Page 4 of 141
