Principles governing cleavage, Biology

Assignment Help:

Principles Governing Cleavage

a) The nucleus and mitotic achromatic figure tend to occupy the centre of active cytoplasmic density of the dividing cells, e.g., in isolecithal eggs or microlecithal eggs, the spindle is formed centrally in the cell while in the telolecithal eggs, and it is formed nearer the animal pole.

b) Each new cleavage furrow tends to intersect the plane of the preceding cleavage furrow at right angle.

c) The cells or blastomeres tend to divide into two equal sized daughter cells unless yolk is unevenly distributed.

d) Free sides of the blastomeres tend to become rounded.


Related Discussions:- Principles governing cleavage

Explain soybean protein isolates, Soybean protein isolates:  Soy protei...

Soybean protein isolates:  Soy protein isolates are the most pure and refined soy protein available.  Isolated soybean proteins (ISP), or  soybean protein isolates, are the mos

Ciguatera fish poisoning, Q. Explain Ciguatera Fish Poisoning? Ciguater...

Q. Explain Ciguatera Fish Poisoning? Ciguatera probably represents the most common cause of poisoning from fish in tropics. Ciguatera comprises over 50% of all reported case

What is fenugreek seeds, Q. What is Fenugreek seeds? Fenugreek seeds: '...

Q. What is Fenugreek seeds? Fenugreek seeds: 'Commonly known as methi seeds in Hindi. They are commonly used in Indian cuisine in chutney and even in pickles and several dishes

How is litmus paper, How is litmus paper and testing for acid, base, and ne...

How is litmus paper and testing for acid, base, and neutral, related to biology?

State bioinert materials, State Bioinert materials Bioinert materials a...

State Bioinert materials Bioinert materials are chemically inert in the body and exhibit minimal chemical interaction with adjacent tissue such as titanium and alumina (Al 2 O

How to derive a mathematical equation, A microbiology student isolated a hy...

A microbiology student isolated a hypothetical bacterial cell that seems to quadruple every generation. Knowing that binary fission is an exponential function, derive a mathematica

Explain the cell cycle in details, Explain the cell cycle in details? M...

Explain the cell cycle in details? Most cells of higher organisms follow a cyclic pattern of division. The bulk of the cycle consists of the stage known as interphase, the peri

Explain the term- cerebral ischemia, Explain the term- Cerebral Ischemia ...

Explain the term- Cerebral Ischemia Ischemia refers to any of a group of disorders in which the symptoms are caused by vessel blockage preventing a sufficient supply of blood t

Original density in CFU/ML, a nutrient agar plate labelled 10^(-5)ml had 15...

a nutrient agar plate labelled 10^(-5)ml had 154 colonies after incubated. what is the cell density in the original sample

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