Glutamine replaced by valine in sckle cell anaemia is characterized________________?
Correct answer: B. Missense mutation of beta chain
- A. Non Sense mutation of beta chain
- B. Missense mutation of beta chain
- C. Degradation of beta chain
- D. Deletion of beta chain
Explanation
Sickle-cell disease results from replacement of glutamic acid by valine in the β-globin chain, which changes one amino acid and therefore represents a missense mutation. The stem incorrectly says glutamine instead of glutamic acid.
Last updated
Practise Molecular Biology
38 free Molecular Biology MCQs from Biochemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Biochemistry questions like this
Biochemistry is on 3 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
A mutation that converts an amino acid codon to a stop codon is a_____________?
All are true of the genetic code except____________?
An enzyme that makes a double stranded DNA copy from a single stranded RNA template molecule is known as____________?
Codons are present on_____________?
Denaturation of double stranded DNA involves_______________?