Egg envelopes, Biology

Assignment Help:

Egg Envelopes

Like any other cell, all the eggs are covered by the cell membrane or plasmalemma It is with two layers of about 50 A? (unit membrane) separated by a gap of 60 A?. In addition to plasmalemma, the eggs of practically all animals are surrounded by special egg envelopes (or egg membranes).

Based on their origin, types of egg envelopes are

  • Primary or
  • Secondary ones.

Related Discussions:- Egg envelopes

Briefly explain about type specimens, Q. Briefly explain about Type Specime...

Q. Briefly explain about Type Specimens ? The specimens on which the names of the species are based are kept as type specimens. Do not replace these specimens because these wi

How membrane voltage increases, Consider an axon of a neuron. At time=t1, i...

Consider an axon of a neuron. At time=t1, its voltage is at threshold for an action potential; at time=t2, its voltage is at 0 millivolts prior to the peak of that action potential

Define the prevention of diseases - function of vitamin e, Define the Preve...

Define the Prevention of diseases - Function of Vitamin E? Because of its anti-oxidant function and its role in inhibiting cell proliferation of smooth muscles, vitamin E can b

Explain the stool weight and laxation, Explain the Stool weight and laxatio...

Explain the Stool weight and laxation? The amount of stool excreted varies markedly from individual to individual and in an individual over a period of time. Faeces are complex

Respiration, #question.what are the organs of respiration in the lwer form ...

#question.what are the organs of respiration in the lwer form of animals .

Phylum protozoa, diversification and economic importance

diversification and economic importance

Explain the decolourizing agent - ziehl-neelsen method, Explain the Decolou...

Explain the Decolourizing Agent - Ziehl-Neelsen Method? Acid alcohol - a mixture of 95% ethanol and 3% HCI - is used for decolourization. Before decolourization, smear is allow

Describe the basic working of cerebral hemisphere, Q. How is it structurall...

Q. How is it structurally explained that the motor activity of the left side of the body is controlled by the right cerebral hemisphere and the motor activity of the right side of

Determine the name of material used for bcc, Determine the name of Material...

Determine the name of Material used for BCC You must be interested to know about type of material you can prepare and some material is available in hospitals and clinics for us

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