Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Meroblastic or partial cleavage
The egg does not divide totally because divisions are restricted to only a part of the egg where as the rest of the egg remains completely uncleaved. It is of two types:
A. Discoidal meroblastic cleavage: It occurs in the heavily yoked macrolecithal and highly telolecithal eggs, as for instance in cephalopod molluscs, reptiles, birds and monotremes (egg laying mammals). The cleavage is restricted to the cytoplasmic germinal disc located at the animal pole. Even the germinal disc divides incompletely where as the entire yolk mass remains undivided.
B. Superficial meroblastic cleavage: This takes place in the centrolecithal eggs of insects. Cell divisions are restricted to the peripheral cytoplasmic layer whereas the centrally located yolky is left undivided.
Distinguish features in the mechanisms of RNA synthesis, + (RNA), (-) RNA, and ds RNA viruses.
Why is not Mendel's second law always valid for two or more phenotypical traits of an individual? Mendel's second law, or the law of the independent assortment, is valid for g
Sulphur Sulphur is a component of the animo acids methionine, cysteine and cystine; the B-vitamins, thiamin and biotin; as well as a number of the organic compounds. Sulphate,
The earth's environment has been composed in a way which sustains life on this planet. Through on process, the different constituents of the atmosphere are consumed and through the
Difference between beta and gama taxonomy
Q. Define Aortic regurgitation? Aortic regurgitation is a common valvular disease that may present chronically or acutely. Normally the integrity of valve closure depends upon
What is Thermoregulation in Cold? Heat production parallels the increase in O 2 uptake, the magnitude of which depends on the muscle mass .engaged in slivering or work and the
It is an inexhaustible and population free source of energy. This energy maintains temperature of the earth. It causes current in the atmosphere and in ocean. The total solar energ
Q. What is the anoxia? Anoxia is a situation in which there is no available oxygen in the cell without oxygen the respiratory chain stops there is no ATP production the cell do
Meningocele In this the meninges protrude through the opening in the vertebrae generally in the lower back. The sac contains meninges and cerebrospinal fluid. The sac may
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd