Skip to main content

Chromosome

Chromosome

Chromosome is composed of DNA and protein. It contain 60% protein and 40% DNA. We know DNA is a hereditary material and play important role.

Chromatin

Chromosome are not visible but during fertilization it looks like thread like filaments are known as chromatin.

Nucleosome

When DNA fold on a histone protein is called nucleosome.

Chromosome amount in different living organism,

Human 46
Sugarcane 80
Potato 46
Frog 26
Honeybee 32
Mosquito 6
Garden pea 14


Labels:

Comments

Post a Comment

Hello students, Computer Science mcqs in pdf will be share tomorrow.
Thanks You
NTs Teacher

Popular posts from this blog

Transpiration

Transpiration www.ntsteacher.com The removal or discharge of extra water from the body of plants is known as transpiration. This processes has great important for the removal of extra water. The rate of transpiration increase by every 10 degree centigrade increase in temperature. But, at the 40 to 45 degree centigrade, the stomata closed and rate of transpiration stop. Plants discharge water by different parts of body which are explain below, Lentcular Cells The cells which are present on stem between bark layers are known as lenticular cells. Only 1 to 2% water  release by lenticular cells. Cuticle Cells Cuticle cells are present on leaf and play important role in transpiration. Only 5 to 7% water release through these cuticle cells. Stomata Cells Stomata also play great role in transpiration. 90% water transport through these cells. Tobacco Plant contains 14000 stomata. 40% transpiration takes place through leaf. Guttation In small plants such as grass...
Post a Comment
Read more