MCQs for Up Bsc Nursing CNET ABVMU
How many nucleotides containing Adenine were present in strand 2?
a) 2
b) 4
c) 5
d) 7
2. What is the smallest part of a DNA molecule that can be changed by a point mutation?
a) Oligonucleotide
b) Codon
c) Gene
d) Nucleotide
3. In bacteria, the transfer of genetic material from one bacterium to another through direct cell-to-cell contact is called:
a) Transformation
b) Transduction
c) Conjugation
d) Replication
4. The genetic code is said to be degenerate because:
a) Each amino acid has multiple codons
b) Each codon codes for multiple amino acids
c) The start codon codes for multiple amino acids
d) The stop codon codes for multiple amino acids
5. Which of the following is an example of a silent mutation?
a) Missense mutation
b) Nonsense mutation
c) Frame-shift mutation
d) None of the above
6. The enzyme responsible for adding telomeres at the ends of eukaryotic chromosomes is:
a) DNA polymerase
b) Primase
c) Telomerase
d) Ligase
7. The Central Dogma of molecular biology states that:
a) DNA is transcribed into RNA, which is then translated into proteins.
b) RNA is transcribed into DNA, which is then translated into proteins.
c) Proteins are transcribed into DNA, which is then translated into RNA.
d) Proteins are transcribed into RNA, which is then translated into DNA.
8. Which of the following is not a type of RNA involved in protein synthesis?
a) Messenger RNA (mRNA)
b) Transfer RNA (tRNA)
c) Ribosomal RNA (rRNA)
d) Regulatory RNA (regRNA)
9. The genetic material in viruses can be:
a) DNA only
b) RNA only
c) Either DNA or RNA
d) Proteins
10. DNA replication is said to be semiconservative because:
a) One strand of DNA is newly synthesized, while the other strand is conserved.
b) Both strands of DNA are newly synthesised.
c) Both strands of DNA are conserved.
d) One strand of DNA is degraded, while the other strand is newly synthesised.
Answer Key
1. d) 7
2. d) Nucleotide
3. c) Conjugation
4. a) Each amino acid has multiple codons
5. d) None of the above
6. c) Telomerase
7. a) DNA is transcribed into RNA, which is then translated into proteins.
8. d) Regulatory RNA (regRNA)
9. c) Either DNA or RNA
10. a) One strand of DNA is newly synthesised, while the other strand is conserved.
| Chapter Name | Chapter Link |
|---|---|
| Sexual Reproduction in Flowering Plants | Link |
| Human Reproduction | Link |
| Reproductive Health | Link |
| Principles of Inheritance and Variation | Link |
| Molecular Basis Of Inheritance | Link |
| Evolution | Link |
| Human Health and Disease | Link |
| Microbes in Human Welfare | Link |
| Biotechnology : Principles and Process | Link |
| Biotechnology and its Applications | Link |
| Organism And Population | Link |
| Ecosystem | Link |
| Biodiversity and Conservation | Link |
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