Exercises

Author:Dr. K.K. Aggarwal

Dr. K.K. Aggarwal Biology Solutions for Exercises

Simple step-by-step solutions to Exercises questions of Cell Cycle, Cell Division and Structure of Chromosomes from A New Approach to Biology. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.

Questions from Exercises with Hints & Solutions

EASY
10th ICSE
IMPORTANT

Mention three significant changes that occur in a cell during interphase.

EASY
10th ICSE
IMPORTANT

Give the reason-

Gametes have a haploid number of chromosomes.

MEDIUM
10th ICSE
IMPORTANT

Lysosomes are known as suicidal bags of the cell. Why?

EASY
10th ICSE
IMPORTANT

Draw a diagram of the nucleus of a cell, having chromosome number 6, as it would appear in the Metaphase stage of mitosis and label the following parts in the diagram; (1) Aster (2) Achromatic spindle (3) Chromatid (4) Centromere.

HARD
10th ICSE
IMPORTANT

Mention the difference between mitosis and meiosis with reference to number of daughter cells formed at the end of the cell division.

HARD
10th ICSE
IMPORTANT

Mention the difference between mitosis and meiosis with reference to the chromosome number of daughter cells formed.

EASY
10th ICSE
IMPORTANT

Why is meiosis referred to as reduction division?

EASY
10th ICSE
IMPORTANT

State how meiosis maintains chromosome number in a species.