Mitochondrial genetics MCQs

By: Prof. Dr. Fazal Rehman | Last updated: May 14, 2025

1. : Cristae acts as a site for…
(A) Oxidation-reduction reactions
(B) Protein synthesis
(C) Molecules breakdown
(D) None of these

2. : Which organelle can be viewed by a light microscope?
(A) Mitochondria
(B) Ribosome
(C) Endoplasmic reticulum
(D) Golgi apparatus

3. : Due to the deficiency of hexosaminidase A, which disease will occur?
(A) Albinism
(B) Tay-Sachs
(C) Tyrosinemia
(D) None of these

4. : Endoplasmic reticulum and mitochondria are involved in the regulation of ____ in the cell.
(A) Ca2+ level
(B) O2 level
(C) Mg2+ level
(D) None of these

5. : In a cell, the number of mitochondria depends on …
(A) Shape of cell
(B) pH of the cell
(C) Functional state of cell
(D) None of these

6. : Deficiency of HGPRTase activity leads to …
(A) Addison’s syndrome
(B) Caison’s syndrome
(C) Lesch-Nyhan syndrome
(D) Wilson’s syndrome

7. : Infoldings at the inner membrane of mitochondria are named as …
(A) Cristae
(B) Grana
(C) Thylakoids
(D) None of these

8. : AGG is a …
(A) Termination codon
(B) Extension codon
(C) Supplement codon
(D) None of these

9. : Ubiquinone is a …
(A) Electron carrier in mitochondria
(B) Electron carrier in ribosome
(C) Electron carrier in Golgi apparatus
(D) None of these

10. : Cytochrome oxidase is a …
(A) Histochemical marker
(B) Protein marker
(C) Sucrose marker
(D) All of these

11. : UGA is a …
(A) Temp codon
(B) Proline
(C) Tryptophan codon
(D) All of these

12. : Which genetic code shows the ambiguity?
(A) UGA
(B) AGA
(C) GAA
(D) URA