Download App

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

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYCell Cycle and Cell Division2 Marks
Question
Mitosis results in producing two cells are similar to other. What would be the consequence if the following irregularities occur during mitosis? Nuclear membrane fails to disintegrate.
✓

Answer

If nuclear membrane fails to disintegrate, the spindle fibres would not be able to reach chromosomes and they would not move towards opposite poles of the cell. In certain protozoan’s, such as Amoeba, the spindle is formed within the nucleus and this is called intra nuclear mitosis or pre-mitosis.

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 "2 Marks Questions" 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

Give the name of the three major layers of diffusion membrane.
→
Which characters are used in natural system of classification? Explain with examples.
→
  1. Define seed dormancy.
  2. Mention two causes for seed dormancy.
→
$3 \mathrm{CO}_2+9 \mathrm{ATP}+6 \mathrm{NADPH}+\text { Water } \rightarrow$
Glyceraldehyde, 3-phosphate +9 ADP +6 NADP $+6 \mathrm{P}_{\mathrm{i}}$. Analyse the above reaction and answer the following questions.
i. How many molecules of ATP and NADPH are required to fix one molecule of $\mathrm{CO}_2$ ?
ii. Where in the chloroplast does this process occur?
→
Why do we call our heart myogenic?
→
Which organisms can sense and respond to their environment? How do humans sense their environment?
→
Give two examples of hormones that have intracellular receptors.
→
Which hormone helps maintain the bone density in the body?
→
What is the need of meiosis in cell division?
→
Water is not a nutrient but is very important for digestion. If a person does not drink enough water, it can lead to which of these problems? Explain the possible problems which can arise because of the situation as per your answer.
  1. There will be less secretion of digestive enzymes.
  2. The person may suffer from poor bowel movement; leading to constipation.
→