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

Explain in details class hirudenia - leeches, Explain in details Class Hiru...

Explain in details Class Hirudenia - Leeches? This group includes the leeches. Most leeches grow in tropical freshwater habitats, and are familiar to most people as bloodsucker

Are there differences between the male and female skeletons, Q. Are there d...

Q. Are there differences between the male and female skeletons? Many general differences exist between female and male skeletons. Male skeleton is normally larger and heavier t

Determine the categories of drug and nutrient relationship, Determine the C...

Determine the Categories of Drug and nutrient relationship? Drug and nutrient relationship can be categorized into two aspects: 1. Effect of nutrition on drugs: the influenc

What are gibberellins, What are gibberellins? Where are they produced? ...

What are gibberellins? Where are they produced? Gibberellins are plant hormones that stimulate plant growth, flowering and fruit formation (also parthenocarpy) and the germina

#title.growth hormone., according to the graph,which age is the amount og g...

according to the graph,which age is the amount og growth hormone produced at its highest?

What is specific defence mechanism, What is Specific defence mechanism ...

What is Specific defence mechanism Specific:  These relate to specialized cells located throughout the  body which respond to invasion of foreign materials/microorganisms  su

Why are grasshopper is said to show male heterogamity, a) Why are grasshopp...

a) Why are grasshopper and Drosophila said to show male heterogamity? Describe. b) Define female heterogamity with the help of an example.

Describe class aves in details, Describe Class Aves in details? Class ...

Describe Class Aves in details? Class Aves: The fossil record contains evidence that birds evolved from the reptiles. Birds share anatomical features with Protoavis and Archa

Excretion, Normal 0 false false false EN-IN X-NONE ...

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

Describe how homologous recombination happening, Write about embryonic stem...

Write about embryonic stem cell invitro methord in which transgenic animal were generated and efficient show how homologous recombination happening?

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