ANSI 3423 COMPREHENSIVE TEST PAPER 2026 QUESTIONS AND CORRECT ANSWERS GRADED A+

ANSI 3423 COMPREHENSIVE TEST PAPER
2026 QUESTIONS AND CORRECT ANSWERS
GRADED A+

●● The chromosome of most prokaryotes differs from those of
eukaryotes because


A) the prokaryotic chromosome does not replicate before mitosis, while
the eukaryotic does.
B) the prokaryotic chromosome is circular, while the eukaryotic is linear.
C) the prokaryotic chromosome is not necessary for survival, while the
eukaryotic is.
D) the prokaryotic chromosome does not contain genes, while the
eukaryotic does.
E) the prokaryotic chromosome is linear, while the eukaryotic is
circular..
Answer: B) the prokaryotic chromosome is circular, while the eukaryotic
is linear.


●● A Barr body is an example of


A) a nucleosome.
B) constitutive euchromatin.

, C) facultative heterochromatin.
D) constitutive heterochromatin.
E) facultative euchromatin..
Answer: C) facultative heterochromatin.


●● Antiparallel means that


A) the helix twists to the right.
B) opposite strands are held together by base pairing.
C) each DNA molecule consists of one old and one new strand.
D) the two polynucleotide chains run in opposite directions.
E) there is complementary base-pairing..
Answer: D) the two polynucleotide chains run in opposite directions.


●● The genetic material of a virus may be


A) double-stranded RNA.
B) single-stranded RNA.
C) double-stranded DNA.
D) single-stranded DNA.
E) all of the above..
Answer: E) all of the above.