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

Clinical evaluation in the continuing care cycle, Clinical Evaluation in ma...

Clinical Evaluation in maintenance in the Continuing Care Cycle Examination of gingival contours, along with mechanical evaluation of the prosthesis, implants, and implant comp

Extra-embryonic membranes and placenta, Extra-Embryonic Membranes and Place...

Extra-Embryonic Membranes and Placenta The extra embryonic membranes like you already know provide nourishment and protection. These membranes are fundamentally similar to th

Cover (area occupied) - quantitative characters, Cover (area occupied) - Qu...

Cover (area occupied) - Quantitative Characters Cover or specifically herbage cover refers primarily to the area of ground occupied by the leaves, stems and inflorescence i.e.

Explain anterior pituitary gland secretes hormones, Explain anterior pituit...

Explain anterior pituitary gland secretes hormones The anterior pituitary gland secretes hormones that elevate  the blood glucose and therefore antagonize the action of glucose

What is the function of the skin in humans, What is the function of the ski...

What is the function of the skin in humans? The skin is the external covering of the body. In humans its major functions are protection, perception of information from the envi

Biochemical function - essential elements, Biochemical Function - Essential...

Biochemical Function - Essential Elements Elements Mg, Mn, K, Ca and Fe are cofactors for many enzymatic reactions. Fe is carrier of electrons in electron transfer chain. Phos

Explain indifferences in ionic composition, Indifferences in ionic composit...

Indifferences in ionic composition Answer A. across membranes can be created through the action of ATP driven pumps as long as number of negative and positive ions on remain equal

How to reduce calorie intake from fat, How to reduce calorie intake from fa...

How to reduce calorie intake from fat? Efforts should be made to increase the nutrition knowledge of the general public through mass media. The foods with lower fat co

Psychology, What name is given to the mental processing of sensory informat...

What name is given to the mental processing of sensory information?

How do chordates reproduce, Q. How do chordates reproduce? Reproduction...

Q. How do chordates reproduce? Reproduction in beings of the phylum Chordata is sexual, with the exception of urochordates that can be also reproduce asexually. In some classes

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