- A spherical structure found in the center of animal cell is nucleus.
- Nucleus constitutes about 10% of the cell’s volume.
- The term “Chromosome” was coined by Waldeyer.
- The DNA threads which appear inside the nucleus at the time of cell division are chromosomes.
- Mitochondria, also known as the powerhouse of the cell, are responsible for energy production.
- Each chromosome is composed of DNA and a protein called Histone.
- Chromosomes carry genetic information in the form of genes which are transmitted from one generation to another.
- The number of chromosome in the parent cell is equal.
- The number of chromosomes present in the human cell is 46.
- The number of chromosomes present in the pea plant cell is 14.