What to create	Exam
Which subject	Biology
What age group	Year or Grade 11
What topic	DNA Structure and ReplicationProtein SynthesisMeiosis
Question types	Close-ended
Number of questions	20
Number of answers	4
Correct answers	Exactly 1
Show correct answers
Use images (descriptions)
Any other preferences	DNA Structure and Replication

Biology Quiz: DNA Structure and Replication, Protein Synthesis, and Meiosis

Instructions

Answer the following questions by selecting the correct option (A, B, C, or D) next to each question. Each question has one correct answer.

1. What is the shape of DNA?

   • A. Linear
   • B. Circular
   • C. Double helix
   • D. Triple helix

2. Which enzyme is responsible for unwinding the DNA double helix during replication?

   • A. DNA polymerase
   • B. Ligase
   • C. Helicase
   • D. Primase

3. During DNA replication, what is the function of DNA polymerase?

   • A. To separate the strands
   • B. To synthesize new DNA strands
   • C. To remove the RNA primers
   • D. To fix mutations

4. What are the building blocks of proteins?

   • A. Nucleotides
   • B. Amino acids
   • C. Fatty acids
   • D. Monosaccharides

5. Which process involves the synthesis of RNA from a DNA template?

   • A. Replication
   • B. Transcription
   • C. Translation
   • D. Duplication

6. In protein synthesis, where does translation occur?

   • A. Nucleus
   • B. Cytoplasm
   • C. Mitochondria
   • D. Ribosome

7. What type of RNA carries amino acids to the ribosome during protein synthesis?

   • A. mRNA
   • B. rRNA
   • C. tRNA
   • D. sRNA

8. Which stage of meiosis involves the separation of homologous chromosomes?

   • A. Prophase I
   • B. Metaphase II
   • C. Anaphase I
   • D. Telophase II

9. What is the end result of meiosis in terms of chromosome number?

   • A. Diploid cells
   • B. Tetraploid cells
   • C. Haploid cells
   • D. Triploid cells

10. During which phase of meiosis does crossing over occur?

    • A. Metaphase I
    • B. Anaphase II
    • C. Prophase I
    • D. Telophase I

11. What is a gene?

    • A. A sequence of amino acids
    • B. A unit of heredity made up of DNA
    • C. A type of RNA
    • D. A structure within the nucleus

12. Which of the following nitrogenous bases is not found in RNA?

    • A. Adenine
    • B. Uracil
    • C. Cytosine
    • D. Thymine

13. What term describes the exchange of genetic material between homologous chromosomes during meiosis?

    • A. Segregation
    • B. Independent assortment
    • C. Crossing over
    • D. Genetic drift

14. In DNA replication, what is the role of RNA primers?

    • A. To encode genetic information
    • B. To initiate the synthesis of new DNA strands
    • C. To form the double helix structure
    • D. To repair damaged DNA

15. Which of the following is true regarding meiosis?

    • A. It results in two identical diploid cells.
    • B. It produces four genetically identical cells.
    • C. It includes two rounds of cell division.
    • D. It occurs only in somatic cells.

16. What process follows transcription in gene expression?

    • A. Translation
    • B. Replication
    • C. Mutation
    • D. Division

17. What is the role of ligase in DNA replication?

    • A. To unwind the DNA
    • B. To synthesize RNA primers
    • C. To seal gaps between Okazaki fragments
    • D. To degrade RNA

18. Which structure on the ribosome facilitates the binding of tRNA during translation?

    • A. P site
    • B. A site
    • C. E site
    • D. All of the above

19. What is the primary purpose of meiosis in organisms?

    • A. Asexual reproduction
    • B. Production of gametes for sexual reproduction
    • C. Cell repair
    • D. Growth

20. What is the process of converting mRNA into a protein?

    • A. Transcription
    • B. Replication
    • C. Translation
    • D. Modification

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Correct Answers

1. C
2. C
3. B
4. B
5. B
6. D
7. C
8. C
9. C
10. C
11. B
12. D
13. C
14. B
15. C
16. A
17. C
18. D
19. B
20. C