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

Express the three functional classifications of joints, In general compare ...

In general compare and contrast the three functional classifications of joints according to movement.

Define two major aspects of nutrition economics, Define two major aspects o...

Define two major aspects of nutrition economics? There are two major aspects of nutrition economics. These aspects are: 1) Quantities of food commodities and their developme

1, what are the alpha taxonomy?

what are the alpha taxonomy?

Describe the procedure of femoral approach, Q. Describe the procedure of fe...

Q. Describe the procedure of femoral approach? The catheter is inserted into the femoral sheath and advanced to the level of the left mainstem bronchus over the guidewire. Aft

Ecosystem and environment, How ecosyestem concept is useful to the study of...

How ecosyestem concept is useful to the study of environment?

Infectious bronchitis (ib), I nfectious bronchitis (IB) Infectious bro...

I nfectious bronchitis (IB) Infectious bronchitis is a highly contagious respiratory disease of poultry, caused by a virus belonging to the family Coronaviridae. Its existence

Accidents and losses, Accidents and Losses Accident can be considered ...

Accidents and Losses Accident can be considered as an incident occurring without intention and results in injury, loss of body part or even death of a human being or a few per

Photomicrograhs, interpretation of liver photomicrograh slides

interpretation of liver photomicrograh slides

Medtronic hancock-biological valves, Medtronic Hancock (Standard Model) :  ...

Medtronic Hancock (Standard Model) :  These are gluteraldehyde preserved xenograft aortic valve, which are mounted. The modified orifice version (M-0) is one where the right

Explain yellow fever, Yellow Fever  Yellow fever vaccine, a single-dose...

Yellow Fever  Yellow fever vaccine, a single-dose attenuated live virus vaccine prepared in eggs, should be given at least 10 days before travel to endemic areas, which include

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