Anaphase, Biology

Assignment Help:

Anaphase

This  phase is of shortest duration. It  begins  with  a sudden  separation  of the two chromatids of each   due  to splitting   of its centromere and  then a slow movement of  separted  chromatids  towards  opposite  poles  of mitotic   spindle . Factors responsible for splitting of centromeres and movement  of attachment  fibres, or  the fibres gradually  shorten,  pulling the chromatids towards   the  poles. Shortening of these  fibres may be due to their  contraction (due  to the  presence of contractile actin  proteinin these ) or  their  gradual depolymeriaztion  at polar  ends Simultaneously, however  the continuous spindle fibres somewhat  elongate, pushing the  spindle  poles more apart. Towards  the end of anaphase  when polar migration  of chromatids is complete , these  is a full  chromosomal  complement  at each  pole identical to the original karyotype  of parent cell. Soon, a nuclear envelope forms around each polar group, presumably from the endoplasmic reticulum.


Related Discussions:- Anaphase

Multiple alleles, MULTIPLE ALLELES (i)         More than two alternativ...

MULTIPLE ALLELES (i)         More than two alternative forms (alleles) of a gene in a population occupying the same locus on a chromosome or its homologue are known as multiple

Describe two differences among green algae and plants, Describe two differe...

Describe two differences among green algae and plants. Algae lack tissue differentiation and have no true roots, leaves and stems. The gametangia of algae are single-celled; th

Similaritie and difference between lamarckism and darwinism, What are the f...

What are the fundamental similarities and differences between lamarckism and darwinism? Both darwinism and lamarckism are evolutionary theories as opposed to fixism, both admit

Explain waste produced during surgical process, Q. Explain Waste produced d...

Q. Explain Waste produced during surgical process? Some of the waste products produced during a surgical process are dressings, sponges, gloves or other soft material dripping

Urine examination of the diabetes patient, Q. Urine Examination of the diab...

Q. Urine Examination of the diabetes Patient? Generally when blood testing facilities are not available, urine is tested for the presence of sugar. A urine sample shows presenc

How to convert 3.5°f to celsius four hundred pounds, Convert 3.5°F to Celsi...

Convert 3.5°F to Celsius Four hundred pounds is how many kilograms?

To study if bacteria grow better where it is warm or cold, To study if bact...

To study if bacteria grow better where it is warm or cold Again inoculate two sterile dishes. Label one 'warm'  and the other 'cold'. Place the 1st dish in a dark warm place an

Hearing, HEARIN G  - Sound waves struck ear drum, it starts vibratio...

HEARIN G  - Sound waves struck ear drum, it starts vibrations, these vibrations are carried to MIS → f. ovalis → S. vestibule →  Hellicotrema → S. Tympani → f. rotundus → mi

Explain about the physiology of eyelid movements, Explain about the physiol...

Explain about the physiology of eyelid movements. Physiology of Eyelid Movements: It is quoted that the eyelids move more than any other part of the body. The major movem

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