TEST BANK GENETIC ANALYST AN INTEGRATED
APPROCHED 3RD EDITION EDITION SANDERS
(CHAPTER 1-20) QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) Q&A 2026
|INSTANT DOWNLOAD PDF
1. Which molecule carries genetic information in most living
organisms?
A. Protein
B. Lipid
C. DNA
D. Carbohydrate
Rationale: DNA stores hereditary information in most
organisms.
Correct Answer: C. DNA
2. RNA differs from DNA because RNA contains:
A. Thymine
B. Uracil
C. Deoxyribose
D. Double strands
Rationale: RNA uses uracil instead of thymine.
Correct Answer: B. Uracil
,3. The basic unit of heredity is the:
A. Chromosome
B. Gene
C. Nucleus
D. Protein
Rationale: Genes are functional units of heredity.
Correct Answer: B. Gene
4. DNA replication is described as:
A. Conservative
B. Semi-conservative
C. Dispersive
D. Random
Rationale: Each DNA molecule contains one old and one new
strand.
Correct Answer: B. Semi-conservative
5. The site of protein synthesis is the:
A. Nucleus
B. Ribosome
C. Mitochondria
D. Golgi body
,Rationale: Ribosomes translate mRNA into protein.
Correct Answer: B. Ribosome
6. A codon consists of how many nucleotides?
A. 1
B. 2
C. 3
D. 4
Rationale: Codons are triplets of nucleotides.
Correct Answer: C. 3
7. Transcription occurs in the:
A. Cytoplasm
B. Ribosome
C. Nucleus
D. Cell membrane
Rationale: mRNA is synthesized in the nucleus.
Correct Answer: C. Nucleus
8. Translation involves synthesis of:
A. DNA
B. RNA
C. Protein
D. Lipids
, Rationale: mRNA is decoded into proteins.
Correct Answer: C. Protein
9. The structure of DNA is best described as a:
A. Single helix
B. Triple helix
C. Double helix
D. Linear chain
Rationale: Watson and Crick described DNA as a double helix.
Correct Answer: C. Double helix
10. Chromosomes are composed of:
A. RNA only
B. DNA and protein
C. Lipids
D. Carbohydrates
Rationale: Chromosomes consist of DNA wrapped around
histones.
Correct Answer: B. DNA and protein
11. A mutation is defined as a change in:
A. Protein structure
B. DNA sequence
C. Cell shape
APPROCHED 3RD EDITION EDITION SANDERS
(CHAPTER 1-20) QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) Q&A 2026
|INSTANT DOWNLOAD PDF
1. Which molecule carries genetic information in most living
organisms?
A. Protein
B. Lipid
C. DNA
D. Carbohydrate
Rationale: DNA stores hereditary information in most
organisms.
Correct Answer: C. DNA
2. RNA differs from DNA because RNA contains:
A. Thymine
B. Uracil
C. Deoxyribose
D. Double strands
Rationale: RNA uses uracil instead of thymine.
Correct Answer: B. Uracil
,3. The basic unit of heredity is the:
A. Chromosome
B. Gene
C. Nucleus
D. Protein
Rationale: Genes are functional units of heredity.
Correct Answer: B. Gene
4. DNA replication is described as:
A. Conservative
B. Semi-conservative
C. Dispersive
D. Random
Rationale: Each DNA molecule contains one old and one new
strand.
Correct Answer: B. Semi-conservative
5. The site of protein synthesis is the:
A. Nucleus
B. Ribosome
C. Mitochondria
D. Golgi body
,Rationale: Ribosomes translate mRNA into protein.
Correct Answer: B. Ribosome
6. A codon consists of how many nucleotides?
A. 1
B. 2
C. 3
D. 4
Rationale: Codons are triplets of nucleotides.
Correct Answer: C. 3
7. Transcription occurs in the:
A. Cytoplasm
B. Ribosome
C. Nucleus
D. Cell membrane
Rationale: mRNA is synthesized in the nucleus.
Correct Answer: C. Nucleus
8. Translation involves synthesis of:
A. DNA
B. RNA
C. Protein
D. Lipids
, Rationale: mRNA is decoded into proteins.
Correct Answer: C. Protein
9. The structure of DNA is best described as a:
A. Single helix
B. Triple helix
C. Double helix
D. Linear chain
Rationale: Watson and Crick described DNA as a double helix.
Correct Answer: C. Double helix
10. Chromosomes are composed of:
A. RNA only
B. DNA and protein
C. Lipids
D. Carbohydrates
Rationale: Chromosomes consist of DNA wrapped around
histones.
Correct Answer: B. DNA and protein
11. A mutation is defined as a change in:
A. Protein structure
B. DNA sequence
C. Cell shape
