Download App

Cell Cycle and Cell Division — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYCell Cycle and Cell Division3 Marks
Question
Can there be mitosis without DNA replication in ‘S’ phase?
✓

Answer

No, there cannot be mitosis without DNA replication in S phase because additional DNAs are required for the formation of new cells. DNA duplication is important as it maintains the chromosome number in the daughter cells and hence Mitosis is an equational division. Therefore, the duplication of DNA is an essential step and without it, no mitosis can take place.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "3 Marks Question" from Cell Cycle and Cell Division→Cell Cycle and Cell Division — all question types→BIOLOGY STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Distinguish between male frog and female frog.
→
Explain the importance of C4 cycle.
→
Diatoms are also called as ‘pearls of ocean’, why? What is diatomaceous earth?
→
Write the differences between: Systole and Diastole.
→
The male and female reproductive organs of several pteridophytes and gymnosperms are comparable to floral structures of angiosperms. Make an attempt to compare the various reproductive parts of pteridophytes and gymnosperms with reproductive structures of angiosperms.
→
Give the major anatomical and physiological differences between Sympathetic system and Parasympathetic system.
→
Proteins have been called 'biological polymers'.Explain.
→
Differentiate between Tricuspid and Bicuspid valve.
→
How are viroids different from viruses?
→
An $\mathrm{Rh}^{-}$woman is carrying an $\mathrm{Rh}^{+}$foetus for the second time. Describe the consequences of Rh -incompatibility in this caseOR
Why is it necessary to check the Rh factor of the blood in a pregnant woman?OR
What physiological circumstances lead to erythroblastosis foetalis?
→