Phases of karyokinesis, Biology

Assignment Help:

Phases of Karyokinesis:

Karyokinesis can further be divided into prophase, metaphase, anaphase and telophase.

1-Prophase: (pro= before)

Chromatin: During Interphase (non- dividing) of the cell cycle the chromosomes are not visible even with electron microscope, but using histological stains for DNA, a network of very fine threads can be visualized. This network is called as chromatin.

Appearance of chromosomes: The chromatin material gets condensed by folding and chromosomes appear as thin threads at the beginning of prophase.

Appearance of Sister chromatids: Chromosomes becomes more and more thick ultimately each chromosomes is visible having two sister chromatids, attached at centromere.

Disappearance of Nucleoli: Towards the end of the prophase, nuclear envelope disappears and nuclear material is released in the cytoplasm.

Disappearance of Nucleoli: Nucleoli disappear.

Mitotic Apparatus: Mitotic apparatus is organized.


Related Discussions:- Phases of karyokinesis

Risk analysis - in-vitro studies, In-vitro studies Mechanistic  data mi...

In-vitro studies Mechanistic  data might be  supplemented by  data  from in-vitro  studies, like  as information on genotoxicity derived from reversion assays or other same ass

Explain theory of enzyme action, Explain Theory of enzyme action L. Mic...

Explain Theory of enzyme action L. Michaelis  and k L. Menten developed a general  theory of enzyme action and kinetics  in  1913. According to this theory, we learnt  that

Find no. of pair of alleles involved polygenic inheritance, How to find the...

How to find the number of pair of alleles involved in polygenic inheritance using the number of phenotypical forms of the trait they condition? Considering the "p" number of th

Define food effect in the survival & growth of microorganism, Define Food E...

Define Food Effects in the Survival & Growth of Microorganism? Nature of the food also affects the microbial survival and growth. Each food has its own characteristics which de

Explain emulsifying properties of proteins, Emulsifying properties of prote...

Emulsifying properties of proteins  Proteins are the surface-active substances, which are extensively used in the food industry as emulsifiers to manufacture products such as d

Treatment and disposal technologies for health-care waste, Q. Treatment and...

Q. Treatment and disposal technologies for health-care waste 1. Incineration 2. Chemical disinfection 3. Wet and dry thermal treatment 4. Microwave irradiation 5. L

How coacervates have facilitated emergence of life on earth, How could coac...

How could coacervates have facilitated the emergence of life on earth? Coacervates probably provided a nitid separation between an internal and an external environment and thus

What are the tupes of aortic aneurysm surgery, What are the tupes of Aortic...

What are the tupes of Aortic Aneurysm Surgery? Types of Surgery :  Technique of surgery and the approach depends on the site of thoracic or thoraco abdominal aortic aneuiysm.

Elaboration of yolk- reproduction, Normal 0 false false fal...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

What is portal and rental circulation, What is Portal and Rental Circulatio...

What is Portal and Rental Circulation ? The body has other circulation systems that do not return blood directly to the heart. For instance, the blood that drains from the abdo

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