Division phase or mitosis, Biology

Assignment Help:

DIVISION PHASE OR MITOSIS (M- PHASE)

Cell division was first  observed by  Naegeli 1842 in plant cells ,but  thoroughly described by Eduard strasburger  1875. Fleming 1879 described  . it in animals  cells. The  term  mitosis was given to it by Fleming 1880. Since  the most  vital  significance of mitosis  is  a precise  duplication of genetic  material  and the latter resides  in the  nucleus  it is advisable  to divide  the whole  process into  nuclear division (= Karyokinesis) and  cytoplasmic division. Sequentially  all changes  undergone  by a cell during  mitosis  are divisible in four  main phases , viz  prophase, metaphase, anaphase and telophase .   


Related Discussions:- Division phase or mitosis

What is the salivary digestive enzyme, Q. What is the salivary digestive en...

Q. What is the salivary digestive enzyme? Which type of food does it digest and into which smaller molecules does it transform the food? The salivary hydrolase is known as sali

Zoology, classification mollusca

classification mollusca

Define dietary and non dietary factors - causation of cancer, Define Dietar...

Define Dietary and Non Dietary Factors - Causation of Cancer? Several dietary and non-dietary factors (including genetics) can increase the risk in the causation of cancer. Som

Nutrient requirement during angina pectoris, Q. Nutrient requirement during...

Q. Nutrient requirement during angina pectoris? The nutrient requirement here is the same as discussed earlier, however, to sum up it can be said that we need to restrict calor

What do you mean by post-herbal period, What do you mean by Post-Herbal Per...

What do you mean by Post-Herbal Period ? Ans. It is difficult to draw a sharp line of demarcation between the transition period, marked by various attempts of classificati

Hygroscopic coeflicient-retention of soil moisture, Hygroscopic Coeflicient...

Hygroscopic Coeflicient To have a more complete picture of soil moisture relations, let us take a soil sample and oven dry it for 24 hours at 11 o C. Now if this soil is kept i

How water balance take place in human body, How Water Balance Take Place in...

How Water Balance Take Place in Human Body? The amount of fluid in the body is tightly controlled because imbalance can be devastating. In a normal individual, the maintenance

Female gametophyte, Female Gametophyte The development of a female gam...

Female Gametophyte The development of a female gametophyte is initiated with the enlargement of one of the megaspores (usually the one close to the chalaza in a linear tetrad)

Inorganic nitrogen and sulphur metabolism, Inorganic Nitrogen and Sulphur M...

Inorganic Nitrogen and Sulphur Metabolism Productivity in agriculture, forestry and other ecosystems is basically limited by the availability of nitrogen nutrients like nitrat

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd