Question

Assertion – A eukaryotic cell possess a well-defined nucleus.

Reason – A nucleus is absent in prokaryotes.

Answer 1

1. A typical prokaryotes cell (bacteria, cyanobacteria) are distinct compared to animal cell.

1. A prokaryotic cell lack a nucleus thus there hereditary material lies in the cytoplasm.
2. Usually a single chromosome is present.
3. Nucleolus, membrane bound cell organelles are also absent.
4. The ribosome present is 70s. Mitosis is also absent as plant cell doesn’t have a spindle.

2.Eukaryotic cells are larger in size 5-100 (μm) has nucleus which contains the hereditary material.

Both assertion and reason are true but reason is not the correct explanation of assertion.