Same chapter3 marksDifficulty: Medium
What is crossing over, when does it occur and why does it matter?
Cell Cycle and Cell Division
3 marksDifficulty: Medium
Distinguish between cytokinesis in a plant cell and in an animal cell.
Original Khojo Papers practice question — not from a past board paper.
Answer
In an animal cell cytokinesis occurs by a furrow that appears in the plasma membrane and deepens until it divides the cell in two. In a plant cell the rigid wall prevents furrowing, so a cell plate forms in the middle and grows outwards until it joins the existing wall.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Some cells undergo karyokinesis without cytokinesis, giving a multinucleate cell.
Related questions
From the same topic and chapter, at a similar level.
Same chapter3 marksDifficulty: Medium
State three differences between mitosis and meiosis.
Cell Cycle and Cell Division
Same chapter3 marksDifficulty: Medium
Name the stages of meiosis I and state what happens in prophase I.
Cell Cycle and Cell Division
Same subject3 marksDifficulty: Medium
State three differences between gymnosperms and angiosperms.
Plant Kingdom
Same subject3 marksDifficulty: Medium
State three characteristics of bryophytes and name one example.
Plant Kingdom
Same subject3 marksDifficulty: Medium
What are viruses, and why are they placed outside the five-kingdom system?
The Living World and Biological Classification