Interkinesis, Biology

Assignment Help:

There is no Interphase preceding second meiotic division.

There is a brief intervening period called Interkinesis

During this period there may be synthesis of some reserve food and proteins. However, there is no replication of DNA prior to meiosis II.

Karyokinesis-ΙΙ

Karyokinesis of meiosis-II (Karyokinesis-II) can be distinguished into four stages namely
• prophase-II,
• metaphase-II,
• anaphase-II and
• Telophase-II.

Prophase-II:

  • It is of a short duration compared to prophase-I. No significant changes take place in the chromosomes.
  • Nuclear membrane and nucleolus disappear.
  • Asters and spindle fibers are formed.

Metaphase-II:

  • The chromosomes line up at the equator of the cell forming a single metaphase plate (as in mitosis).


Anaphase-II:

  • The centromere splits and two chromatids in each chromosome start moving away from each other. Finally, they reach the poles of the cell.
  • Each pole now has haploid number of chromosomes and half the amount of DNA.
  • Telophase-II:
  • Chromosomes at each pole uncoil and elongate to form chromatin.
  • Nucleolus and nuclear membrane are formed surrounding each chromatin network.
  • Asters and spindle fibers disappear and centrioles divide. Daughter nuclei are formed.

 


Related Discussions:- Interkinesis

Types of surgery-pulmonary regurgitation, Types of Surgery :  Pulmonary va...

Types of Surgery :  Pulmonary valve replacement using pulmonary or aortic allograft is the procedure of choice. It increases R.V. ejection fraction, decreases R.V. end diastolic p

Chromolipid, CHROMOLIPID Formed by lipid & pigment, eg. carotene, xanth...

CHROMOLIPID Formed by lipid & pigment, eg. carotene, xanthophylls. Lycopene present in tomato & red chilli. Carrot is rich in b-carotene, converted into vitamin A.

Intermediate filaments - role of cytoskeleton structures, Intermediate fila...

Intermediate filaments - Role of Cytoskeleton Structures These filaments are intermediate in size among microtubules and microfilaments and are 10 nm in diameter. Five classes

Define vitamins and minerals requirement for cancer patients, Define Vitami...

Define Vitamins, Minerals and Phytochemicals requirement for cancer patients? Several vitamins particularly those of the B-group are essential to promote adequate metabolism of

What is a graduated cylinder and how is it used, What is a graduated cylind...

What is a graduated cylinder and how is it used? A graduated cylinder is a piece of laboratory glassware used to accurately calculate out volumes of chemicals for use in reacti

What are flavonols and flavones, What are Flavonols and Flavones? These...

What are Flavonols and Flavones? These are the most widely distributed among the flavonoids. The most commonly occurring are Quercetin, Myricetin and Kaempferol. Quercetin is q

Intra cranial mycotic aneurysms, The reported occurrence of ICMAs is 1.2 pe...

The reported occurrence of ICMAs is 1.2 per cent to 5 per cent of cases. Streptococci and S.aureus account for 50 per cent and 10 per cent of cases, respectively, and are seen with

Dietetic foods for diabetes, Dietetic Foods for diabetes: With advances...

Dietetic Foods for diabetes: With advances in food technology, foods for special use by diabetics are now available in the global market, they are emerging in India also. These

Explain the management of apical canal impediment, Explain the Management o...

Explain the Management of Apical Canal Impediment Well angulated radiograph Coronal pre-flaring Pulp champer flooded with sodium hypochlorite Coronal passive

Indications for surgery-pericardial effusion, Pericardial Effusion:  Indica...

Pericardial Effusion:  Indications for Surgery: Pericardial effusion may be the result of peiicarditis due to infection, autoimmune disease or neoplasm. Non-inflammatoly diseases

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