Which of the following pair is correct? I. Prokaryotic cells – single…
2021
Which of the following pair is correct? I. Prokaryotic cells – single chromosome II. Eukaryotic cells – more than one chromosome
- A.
Only I
- B.
Only II
- C.
Both I and II
- D.
Neither I nor II
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Correct answer: C
I. Prokaryotic cells – single chromosome: In prokaryotes (like bacteria), the genetic material usually consists of a single, circular DNA molecule located in a region called the nucleoid. They do not have multiple chromosomes or a nucleus.
II. Eukaryotic cells – more than one chromosome: Eukaryotes (like humans, plants, and fungi) have their DNA organized into multiple, linear chromosomes contained within a membrane-bound nucleus. For example, humans have 46 chromosomes (23 pairs).