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

Define nutritional management of celiac disease, Define Nutritional Managem...

Define Nutritional Management of Celiac Disease? A gluten-free diet is the major therapy for celiac disease patients, particularly children, and may be needed for lifelong adhe

Can you explain the mycorrhizas, Q. What are the mycorrhizas? How does each...

Q. What are the mycorrhizas? How does each participant benefit in this ecological interaction? Mycorrhizas are mutualist ecological interactions between some plants roots and f

What is the possible dna sequence, Insulin was the first protein to be sequ...

Insulin was the first protein to be sequenced biochemically. Assuming that there were no introns involved in the process, what are the possible DNA sequences that produced the last

Animal cells, how to explain the structure and function of the organelle

how to explain the structure and function of the organelle

Explain defensive proteins, Explain Defensive Proteins These proteins p...

Explain Defensive Proteins These proteins protect against diseases. Antibodies are the example of defensive proteins. These  combat bacteria and viruses. Also, immunoglobulins,

Plot the amount of dna in the nucleus, Plot the amount of DNA in the nucleu...

Plot the amount of DNA in the nucleus of spermatogonia from the G1 stage prior to the first meiotic division through the completion of meiosis. Label each of the major stages of th

Explain the competitive behaviour of social animal group, Explain the Compe...

Explain the Competitive behaviour of social animal group dominance behaviours removal of individuals to other groups which minimises inbreeding eg lions, apes.

Cell, cells are the smallest structural units of the living matter and is ...

cells are the smallest structural units of the living matter and is capable of functioning independently.

Rationale based on theories of miasma or contagion, Early campaigns of the ...

Early campaigns of the 19th century that focused on sanitation, hygiene, housing, and nutrition had little effect in controlling communicable disease due to flawed rationale based

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