Biochemical Engineering Questions and Answers – Cellular Information – Mutation

This set of Biochemical Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Cellular Information – Mutation”.

1. Genetic material of virus can be permanently altered by mutation.
a) True
b) False
View Answer

Answer: a
Explanation: Mutation can permanently alter the genetic materials of all species. Mutation results in an error to all the genetic activities.

2. Human eye uses 4 genes to make structures to detect light. Cone and rod cells are involved in this light detection. Identify the number of each cell.
a) 3 cone cells and 1 rod cell
b) 2 cone cells and 2 rod cells
c) 1 cone cell and 3 rod cells
d) 2 cone cells and 1rod cell
View Answer

Answer: a
Explanation: Cone cells are for the color vision and rod cells are for the night vision. All these four cells arise from a single parent gene. This is due to the mutation which occurred during evolution.

3. Which region of DNA is formed into a new gene?
a) Coding regions
b) Poly A tail
c) Histones
d) Non-coding regions
View Answer

Answer: d
Explanation: Non coding region of DNA are formed into new gene after mutation. Other functions of non-coding DNA are translational regulation for protein coding, Origin of replication and etc.
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4. Depurination is a method of characterizing which of these mutations?
a) Induced mutation
b) Error induced during DNA repair
c) Spontaneous mutation
d) Error prone replication
View Answer

Answer: c
Explanation: Spontaneous mutation occurs with non-zero probability. Deamination, Depurination and Tautomerism are all spontaneous mutations.

5. Which of these is a major cause for spontaneous mutation?
a) Induced mutation
b) Error induced during DNA repair
c) Spontaneous mutation
d) Error prone replication
View Answer

Answer: d
Explanation: Majority of spontaneous mutation arise due to error prone replication. These error replications occur either by the addition, deletion or substitution of a base pair.

6. Which of this can cause induced mutation?
a) Deamination
b) Depurination
c) Hydroxylamine
d) Tautomerism
View Answer

Answer: c
Explanation: Induced mutation can be caused due to chemicals. The main chemicals are:- Hydroxylamine, Alkylating agents and radiation techniques.

7. What is non-sense mutation?
a) Coding for different protein
b) Coding for same amino acid
c) Code for stop codons
d) Coding for different vitamins
View Answer

Answer: c
Explanation: Non-sense mutation codes for stop codons. The other mutations are silent mutation and missense mutation respectively.
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8. Who explained the concept of mutation first?
a) Etienne Geoffroy Saint-Hilaire
b) Charles Darwin
c) Hugo de Vries
d) William Bateson
View Answer

Answer: b
Explanation: Charles Darwin explained the concept of mutation by natural selection. He also published a book called origin of species. He said that mutation is a source of novelty.

9. What is lethal mutation?
a) Changes genetic products
b) New protein is synthesized
c) Death of organism
d) Reversion of point mutation
View Answer

Answer: c
Explanation: Lethal mutation leads to the death of organism causing the mutation. The mutation occurs in the genes essential for growth and development.
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10. Evolution is the result of mutation.
a) True
b) False
View Answer

Answer: a
Explanation: Mutation plays role in both normal and abnormal biological processes. Evolution, Cancer is part of mutation.

Sanfoundry Global Education & Learning Series – Biochemical Engineering

To practice all areas of Biochemical Engineering, here is complete set of 1000+ Multiple Choice Questions and Answers.

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Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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