Molecular Biology and Genetics MCQs
Practice free Molecular Biology and Genetics multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 82 questions — no login required.
Question 64hard
PKU is one of the best-known hereditary disorders in amino acid metabolism. The defect is attributed to a lesion in one of the following enzymatic activities:
Question 65hard
A truncated polypeptide is synthesized due to a nonsense mutation. Where would you introduce another mutation to obtain a full-length polypeptide?
Question 66hard
Diploid Drosophila has eight chromosomes. Which one of the following terms should not be used to describe Drosophila with sixteen numbers of chromosomes?
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Question 67hard
How many 3-tuples are possible for the following amino acid sequence?
Question 68medium
Molecular chaperones are class of proteins that facilitate
Question 69hard
Which one of the following is not a therapeutic agent based on nucleic acid for the treatment of genetic disorders?
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Question 70hard
The enzyme that transcribes the eukaryotic genes encoding precursor ribosomal RNAs (pre-rRNAs) of 28S, 18S and 5.8S rRNAs is
Question 71easy
Caspases are involved in the process of
Question 72hard
Which of the following statements are true with respect to a special complex called 'dicer'? P. It consists of deoxyribonuclease and DNA fragments. Q. It consists of ribonuclease and RNA fragments. R. It is involved in gene silencing. S. It triggers apoptosis.