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Question:
Extranuclear chromosomes occur in
Extranuclear chromosomes occur in
Updated On: Jul 25, 2024
- Peroxisome, Ribosome
- Chloroplast and Mitochondria
- Mitochondria and Ribosome
- Chloroplast and Lysosome
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The Correct Option is B
Solution and Explanation
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
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Concepts Used:
Evolution
Evolution is a process that occurs in changes in the genetic content of a population over time. Evolutionary change is generally classified into two: microevolution and macroevolution. The process of changes in allele frequencies in a population over time is a microevolutionary process. Three main mechanisms that cause allele frequency change are natural selection, genetic drift, and gene flow. On the other hand, macroevolution refers to change at or above the level of the species.
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