NEET PG Medical – 2019 – Question – 35
All are true regarding mitochondrial DNA, EXCEPT ?
a) Double stranded
b) Inherited from mother
c) High mutation rate
d) All respiratory proteins are synthesized within mitochondria itself
Show Answer
Correct Answer – D
Answer. D. All respiratory proteins are synthesized within mitochondria itself
- Mt DNA is organized as a circular, covalently closed, doublestranded DNA.
- In sexual reproduction, mitochondria are normally inherited exclusively from the mother; the mitochondria in mammalian sperm are usually destroyed by the egg cell after fertilization.
- Mutations of mitochondrial DNA can lead to a number of illnesses including exercise intolerance and Kearns–Sayre syndrome(KSS), which causes a person to lose full function of heart, eye, and muscle movements.
