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

Carbon dioxide concentration in photosynthesis process, Q. Why is carbon di...

Q. Why is carbon dioxide concentration a limiting factor of the photosynthesis process? And When the carbon dioxide concentration is increased indefinitely is photosynthesis also i

Which kind of plant tissue is cork, Which kind of plant tissue is cork? ...

Which kind of plant tissue is cork? The Cork is the material for instance, used to cap wine bottles, and is extracted from the suber of a special oak called cork.

Environment can change the genotype of an individual, What are the situatio...

What are the situations in which the environment can change the genotype of an individual? What is the condition for this type of change to be transmitted to the offspring? The

Fluid management in diarrhoea, Q. Fluid management in Diarrhoea? Fluid ...

Q. Fluid management in Diarrhoea? Fluid management: The key to diarrhoea management is the early replacement of fluid lost in the stools through intravenous or oral route. Whil

Foot as burrowing organ, Foot as Burrowing Organ The Scaphopoda that ...

Foot as Burrowing Organ The Scaphopoda that usually have burrowing habit, possess foot suitably modified for burrowing purpose. The conical and protrusible foot of Dentalium

Explain about the dysphagia, Explain about the Dysphagia? Dysphagia is ...

Explain about the Dysphagia? Dysphagia is the inability to swallow or difficulty in swallowing. It is a common problem in those with neurological disorders and can occur in any

Show the effect of left ventricular hypertrophy, Q. Show the Effect of Left...

Q. Show the Effect of Left Ventricular Hypertrophy? The increase in coronary flow has been termed flow reserve and its magnitude is important in providing adequate perfusion t

Describe rna sequence, Q. What is the name of an RNA sequence that codifies...

Q. What is the name of an RNA sequence that codifies one amino acid? Each sequence of three nitrogen-containing basis of RNA that codifies one amino acid is called a codon. The

Draw a diagram of external view of a human brain, Draw a diagram of externa...

Draw a diagram of external view of a human brain. Label:- frontal lobe, temporal lobe, occipital lobe and cerebellum.

Explain the role of dietitian''s in feeding dilemmas, Explain the role of d...

Explain the role of dietitian's in feeding dilemmas Usually, the dietitian's role in  feeding dilemmas is seen as secondary and the physician's role  is the  focus. In reality,

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