Question
Biology Question on Molecular Basis of Inheritance
Extranuclear chromosomes occur in
A
Peroxisome, Ribosome
B
Chloroplast and Mitochondria
C
Mitochondria and Ribosome
D
Chloroplast and Lysosome
Answer
Chloroplast and Mitochondria
Explanation
Solution
Extranuclear chromosomes are found in organelles like chloroplasts and mitochondria, which have their own DNA separate from the nuclear DNA. These organelles are believed to have originated from ancient symbiotic bacteria and still retain their own genetic material for some essential functions. So, the correct option is (B): Chloroplast and Mitochondria