Metaphase, Biology

Assignment Help:

Metaphase

This  is a period  of short duration, the  chromosomes are  at the  stage of their  maximum  condensation and , hence more  clearly  visible ,Upon  each  side  of their  centromeres,  a plate or cup like  dise ,formed  of protein  complexes  and  called  kinetochore , appears in the  depression  of the chromatid  of this  side  the  kinetochore  of each side  is seen to be attached  to  a bundle  of a number ( usually  20  to 40 )  of newly  formed spindle  fibres   called discontinuous , or  attachment , or chromosomal ,  or interzonal  spindle  fibres . The  opposite  ends of  these  fibres   are attached to the  spindle poles of their  respective sides. These  fibres pull  the scattered  chromosomes and  align then  in a fixed  specific  manner at the equatorial plane  of the spindle  forming  what is  known  as the equatorial or  metaphase plate.


Related Discussions:- Metaphase

Name the compound that is phosphorylated for atp formation, What is the com...

What is the compound that is phosphorylated for ATP formation? What is the resulting compound when ATP liberates energy? ATP, or adenosine triphosphate, is produced after the

Plants of dry environment open their stomata only at night, Why do few plan...

Why do few plants adapted to a dry environment open their stomata only at night? Throughout the day in dry habitats the guard cells become the stomata close and flaccid; concur

Explain the skin fold method to measure body fats, Explain the Skin fold me...

Explain the Skin fold method to measure body fats? The skin fold method utilizes predication of body fat from sum of three or four skin folds (at biceps, triceps, sub scapular,

Digestive system, I want to know how does our digestive system work

I want to know how does our digestive system work

Explain the classification of malignant tumors, Explain the Classification ...

Explain the Classification of Malignant Tumors Malignant tumors can be classified as: Carcinomas: These tumors arise from the epithelial lining (the squamous cells) e.g. ski

What is hemocoel. explain in detail, What is Hemocoel? Explain in detail. ...

What is Hemocoel? Explain in detail. Principle body cavity in molluscs and arthropods, remnant of the blastocoel. It forms part of open circulatory system found in these animal

What is resting membrane potential of a neuron, What is resting membrane po...

What is resting membrane potential of a neuron? What is the function of sodium potassium pumps in maintaining it?

Explain saturated fatty acids, Saturated fatty  acids General formula o...

Saturated fatty  acids General formula of saturated fatty acids  is CH3  (CHI), COOH. It has a polar end with a free XOOH group and a non-polar end with a hydrocarbon chain, as

Specific causes of parental anxiety - hospitalization, Specific Causes of P...

Specific Causes of Parental Anxiety   Some of the factors  that increase  their anxiety include following:  1)  Fear of the strange environment in the hospital  2)  Fear

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