Page 1 of 188
TEST BANK: GENETIC ANALYSIS, 12TH
EDITION
COMPLETE COVERAGE: CHAPTERS 1-20
100% VERIFIED QUESTIONS & ANSWERS
WITH RATIONALES
GRADED A+ | LATEST 2026/2027 UPDATE
HIGH-YIELD FOR GENETICS EXAMS,
MCAT, AND GRADUATE ENTRANCE
---
QUESTION 1
The early 1900s was an important period for
genetics due to which of the following major events?
A) The rediscovery of Gregor Mendel's scientific
findings
B) Watson and Crick solving the structure of DNA
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C) Walter Sutton and Theodore Boveri
hypothesizing that chromosomes are the hereditary
elements
D) The rediscovery of Mendel's findings and
Sutton/Boveri hypothesizing that chromosomes are
hereditary elements
E) All of the answer options are correct
CORRECT ANSWER: E
RATIONALE: The rediscovery of Mendel's work in
1900 (by Correns, de Vries, and von Tschermak) and
the chromosomal theory of inheritance proposed by
Sutton and Boveri were both critical events in early
20th-century genetics, establishing the foundation
for modern genetics. Watson and Crick's work came
later in 1953.
---
QUESTION 2
, Page 3 of 188
A sample of normal double-stranded DNA was
found to have a guanine content of 18%. What is the
expected proportion of adenine?
A) 9%
B) 32%
C) 36%
D) 68%
E) 82%
CORRECT ANSWER: B
RATIONALE: According to Chargaff's rules, in
double-stranded DNA, adenine pairs with thymine
(A = T) and guanine pairs with cytosine (G = C). If
G = 18%, then C = 18%. Together G+C = 36%, so
A+T = 64%. Since A = T, A = 32%.
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QUESTION 3
, Page 4 of 188
In one strand of DNA, the nucleotide sequence is 5'-
ATGC-3'. The complementary sequence in the other
strand must be:
A) 3'-ATGC-5'
B) 3'-TACG-5'
C) 5'-ATCG-3'
D) 5'-CGTA-3'
E) 5'-TACG-3'
CORRECT ANSWER: B
RATIONALE: DNA strands are antiparallel and
complementary. The complementary bases are A-T
and G-C. Starting from the 3' end of the
complementary strand: A pairs with T (3'), T pairs
with A, G pairs with C, and C pairs with G, giving
3'-TACG-5'.
---
QUESTION 4
TEST BANK: GENETIC ANALYSIS, 12TH
EDITION
COMPLETE COVERAGE: CHAPTERS 1-20
100% VERIFIED QUESTIONS & ANSWERS
WITH RATIONALES
GRADED A+ | LATEST 2026/2027 UPDATE
HIGH-YIELD FOR GENETICS EXAMS,
MCAT, AND GRADUATE ENTRANCE
---
QUESTION 1
The early 1900s was an important period for
genetics due to which of the following major events?
A) The rediscovery of Gregor Mendel's scientific
findings
B) Watson and Crick solving the structure of DNA
, Page 2 of 188
C) Walter Sutton and Theodore Boveri
hypothesizing that chromosomes are the hereditary
elements
D) The rediscovery of Mendel's findings and
Sutton/Boveri hypothesizing that chromosomes are
hereditary elements
E) All of the answer options are correct
CORRECT ANSWER: E
RATIONALE: The rediscovery of Mendel's work in
1900 (by Correns, de Vries, and von Tschermak) and
the chromosomal theory of inheritance proposed by
Sutton and Boveri were both critical events in early
20th-century genetics, establishing the foundation
for modern genetics. Watson and Crick's work came
later in 1953.
---
QUESTION 2
, Page 3 of 188
A sample of normal double-stranded DNA was
found to have a guanine content of 18%. What is the
expected proportion of adenine?
A) 9%
B) 32%
C) 36%
D) 68%
E) 82%
CORRECT ANSWER: B
RATIONALE: According to Chargaff's rules, in
double-stranded DNA, adenine pairs with thymine
(A = T) and guanine pairs with cytosine (G = C). If
G = 18%, then C = 18%. Together G+C = 36%, so
A+T = 64%. Since A = T, A = 32%.
---
QUESTION 3
, Page 4 of 188
In one strand of DNA, the nucleotide sequence is 5'-
ATGC-3'. The complementary sequence in the other
strand must be:
A) 3'-ATGC-5'
B) 3'-TACG-5'
C) 5'-ATCG-3'
D) 5'-CGTA-3'
E) 5'-TACG-3'
CORRECT ANSWER: B
RATIONALE: DNA strands are antiparallel and
complementary. The complementary bases are A-T
and G-C. Starting from the 3' end of the
complementary strand: A pairs with T (3'), T pairs
with A, G pairs with C, and C pairs with G, giving
3'-TACG-5'.
---
QUESTION 4
