Biology 115 Exam 2 Review (New 2026/
2027 Update) Questions & Answers {Grade
A} 100% Correct (Verified Solutions)-
Rutgers
Diagnose sex linkage. A man inherits a X-linked disorder. Hypothesize which of the
following ancestors could be the source of his disorder.
I. Paternal grandmother (his father's mother)
II. Maternal grandmother (his mother's mother)
III. Paternal grandfather (his father's father)
IV. Maternal grandfather (his mother's father) - Correct answer II or IV
Barr bodies:
a. Occur when one X is randomly deactivated
b. Involve the Y chromosome
c. Occur in autosomal chromosomes in females
d. can only occur in females - Correct answer a. Occur when one X is randomly
deactivated
,(Image on Q#32)
Referring to the following image, which of the following statement(s) is/are TRUE?
I. 5' end of the molecule (top right)
II. 5' end of the molecule (top left)
III. Elongation only occurs here (bottom right) - Correct answer I only
Correctly SEQ the following proteins in the order in which they participate in DNA
replication, starting with the breaking of hydrogen bonds.
I. DNA polymerase
II. Primase
III. Helicase
IV. Single-strand binding proteins - Correct answer III, IV, II, I
A SEQ of one DNA strand is:
3' A A T G G C T A C 5'
a. 5' A A T G G C T A C 3'
, b. 5' T T A C C G A T G 3'
c. 3' C A T C G G T A A 5'
d. 5' U U A C C G A U G 3' - Correct answer b. 5' T T A C C G A T G 3'
Identify which of the following are components of a cytosine nucleotide.
I. a purine
II. a pyrimidine
III. a five-carbon sugar
IV. a phosphate group - Correct answer II, III, and IV
Identify which of the following correctly describes the operation of DNA polymerase
I. Adds new nucleotides to the 5' side of the new DNA strand
II. Catalyzes the formation of phosphodiester bonds
III. Synthesizes a complementary daughter to the parent strand - Correct answer II and
III
Hypothesize the result of a mutation that prevented RNA primase from functioning.
How would DNA replication be affected?
2027 Update) Questions & Answers {Grade
A} 100% Correct (Verified Solutions)-
Rutgers
Diagnose sex linkage. A man inherits a X-linked disorder. Hypothesize which of the
following ancestors could be the source of his disorder.
I. Paternal grandmother (his father's mother)
II. Maternal grandmother (his mother's mother)
III. Paternal grandfather (his father's father)
IV. Maternal grandfather (his mother's father) - Correct answer II or IV
Barr bodies:
a. Occur when one X is randomly deactivated
b. Involve the Y chromosome
c. Occur in autosomal chromosomes in females
d. can only occur in females - Correct answer a. Occur when one X is randomly
deactivated
,(Image on Q#32)
Referring to the following image, which of the following statement(s) is/are TRUE?
I. 5' end of the molecule (top right)
II. 5' end of the molecule (top left)
III. Elongation only occurs here (bottom right) - Correct answer I only
Correctly SEQ the following proteins in the order in which they participate in DNA
replication, starting with the breaking of hydrogen bonds.
I. DNA polymerase
II. Primase
III. Helicase
IV. Single-strand binding proteins - Correct answer III, IV, II, I
A SEQ of one DNA strand is:
3' A A T G G C T A C 5'
a. 5' A A T G G C T A C 3'
, b. 5' T T A C C G A T G 3'
c. 3' C A T C G G T A A 5'
d. 5' U U A C C G A U G 3' - Correct answer b. 5' T T A C C G A T G 3'
Identify which of the following are components of a cytosine nucleotide.
I. a purine
II. a pyrimidine
III. a five-carbon sugar
IV. a phosphate group - Correct answer II, III, and IV
Identify which of the following correctly describes the operation of DNA polymerase
I. Adds new nucleotides to the 5' side of the new DNA strand
II. Catalyzes the formation of phosphodiester bonds
III. Synthesizes a complementary daughter to the parent strand - Correct answer II and
III
Hypothesize the result of a mutation that prevented RNA primase from functioning.
How would DNA replication be affected?
