Question Detail

ZOO 101 ZOO 101 Past Questions Objective Question
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Question

Assertion (A): Mitochondrion contains one double stranded circular DNA. Reason (R): DNA carries genes for all the proteins needed for its functioning.
Options
A Both A and R are individually true and R is the correct explanation of A
B Both A and R are individually true but R is not the correct explanation of A
C A is true but R is false
Correct Answer
D A is false but R is true
Correct Answer

Option C is the correct answer.

Detailed Explanation

Assertion A is true: Mitochondria contain their own double-stranded circular DNA (mtDNA). Reason R is false: While mtDNA encodes some proteins (e.g., subunits of the electron transport chain), it does not carry genes for all the proteins needed for mitochondrial functioning. Most mitochondrial proteins are encoded by nuclear DNA, synthesized in the cytoplasm, and imported into the mitochondria.

Hint

Consider the extent of genetic independence of mitochondria from the nuclear genome.

Question Info

Course: ZOO 101
Topic: ZOO 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 907 of 2214
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