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Ch. 1 The_ Molecular Basis of Heredity, Variation, and Evolution
1.1 MCQs
1. Bacteria are single-celled organisms with a single chromosome found in which cell space?
A. nucleus
B. nucleolus
C. nucleoid
D. nuclear envelope
E. mitochondria
Ans: C
Ans-- 1.1
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2. Sexual reproduction uses meiosis to generate
A. two identical haploid gametes.
B. two identical diploid gametes.
C. four identical haploid gametes.
D. four unique diploid gametes.
E. four unique haploid gametes.
Ans: E
Ans-- 1.1
-- Application/Analysis
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3. When a diploid cell divides by mitosis, the_ result is
A. two identical haploid cells.
B. two identical diploid cells.
C. four identical haploid cells.
D. four unique diploid cells.
E. four unique haploid cells.
Ans: B
Ans-- 1.1
-- Application/Analysis
4. Modern genetics consists of three major branches. Which of these branches, also known as
"transmission genetics," involves the_ study of the_ transmission of traits and characteristics in
successive generations?
A. evolutionary
B. Mendelian
C. molecular
D. population
E. reproductive
Ans: B
Ans-- 1.1
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5. You identify a new unicellular organism with multiple chromosomes organized by proteins within
the_ cell's nucleus. Into which of the_ three domains of life might this organism fit?
A. Archaea
B. Bacteria
C. Eukarya
D. Archaea or Bacteria
E. Archaea or Eukarya
Ans: C
Ans-- 1.1
-- Application/Analysis
6. Watson and Crick used evidence from several studies to determine the_ structure of DNA. What
conclusion were they able to draw from Rosalind Franklin's X-ray diffraction data, specifically?
A. DNA consists of four types of nucleotide bases: A, T, C, and G.
B. DNA nucleotides form complementary base pairs.
C. Adenine pairs with thymine and cytosine pairs with guanine when they are on opposite DNA
strands.
D. DNA is a duplex, with two strands forming a double helix.
E. The_ DNA strands are antiparallel, and the_ strands are held together by hydrogen bonds.
Ans: D
Ans-- 1.2
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7. What kind of bond is formed between the_ 5′ phosphate group of one nucleotide and the_ 3′
hydroxyl (OH. group of the_ adjacent nucleotide?
A. ionic bond
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B. phosphodiester bond
C. hydrogen bond
D. disulfide bond
E. hydroxyl bond
Ans: B
Ans-- 1.3
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8. What kind of bond is formed between complementary base pairs to join the_ two DNA strands into
a double helix?
A. ionic bond
B. phosphodiester bond
C. hydrogen bond
D. disulfide bond
E. peptide bond
Ans: C
Ans-- 1.3
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Ch. 1 The_ Molecular Basis of Heredity, Variation, and Evolution
1.1 MCQs
1. Bacteria are single-celled organisms with a single chromosome found in which cell space?
A. nucleus
B. nucleolus
C. nucleoid
D. nuclear envelope
E. mitochondria
Ans: C
Ans-- 1.1
--
2. Sexual reproduction uses meiosis to generate
A. two identical haploid gametes.
B. two identical diploid gametes.
C. four identical haploid gametes.
D. four unique diploid gametes.
E. four unique haploid gametes.
Ans: E
Ans-- 1.1
-- Application/Analysis
1
,Test Bank
3. When a diploid cell divides by mitosis, the_ result is
A. two identical haploid cells.
B. two identical diploid cells.
C. four identical haploid cells.
D. four unique diploid cells.
E. four unique haploid cells.
Ans: B
Ans-- 1.1
-- Application/Analysis
4. Modern genetics consists of three major branches. Which of these branches, also known as
"transmission genetics," involves the_ study of the_ transmission of traits and characteristics in
successive generations?
A. evolutionary
B. Mendelian
C. molecular
D. population
E. reproductive
Ans: B
Ans-- 1.1
--
2
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5. You identify a new unicellular organism with multiple chromosomes organized by proteins within
the_ cell's nucleus. Into which of the_ three domains of life might this organism fit?
A. Archaea
B. Bacteria
C. Eukarya
D. Archaea or Bacteria
E. Archaea or Eukarya
Ans: C
Ans-- 1.1
-- Application/Analysis
6. Watson and Crick used evidence from several studies to determine the_ structure of DNA. What
conclusion were they able to draw from Rosalind Franklin's X-ray diffraction data, specifically?
A. DNA consists of four types of nucleotide bases: A, T, C, and G.
B. DNA nucleotides form complementary base pairs.
C. Adenine pairs with thymine and cytosine pairs with guanine when they are on opposite DNA
strands.
D. DNA is a duplex, with two strands forming a double helix.
E. The_ DNA strands are antiparallel, and the_ strands are held together by hydrogen bonds.
Ans: D
Ans-- 1.2
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7. What kind of bond is formed between the_ 5′ phosphate group of one nucleotide and the_ 3′
hydroxyl (OH. group of the_ adjacent nucleotide?
A. ionic bond
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B. phosphodiester bond
C. hydrogen bond
D. disulfide bond
E. hydroxyl bond
Ans: B
Ans-- 1.3
--
8. What kind of bond is formed between complementary base pairs to join the_ two DNA strands into
a double helix?
A. ionic bond
B. phosphodiester bond
C. hydrogen bond
D. disulfide bond
E. peptide bond
Ans: C
Ans-- 1.3
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