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.
Q. What do you know about Tricuspid stenosis? It is rare disease, with rheumatic etiology seen in 90 per cent of cases. In patients with rheumatic mitral stenosis only 3-5 per
Explain Nutritional Requirements of Microbes? Microorganisms require various nutrients and physical factors for their existence and growth. Nutrients are substances used in bio
Explain Two major causes of severe Protein Energy Malnutrition? Two major causes of severe PEM are diluted milk formulae and infections, especially diarrhoea in poor communiti
Ecological Pyramids - Ecosystem The ancient Egyptians constructed elaborate tombs called pyramids. The base of the pyramid is broad and it supports the upper levels of the str
What is meant by encystment
FRUIT AND VEGETABLE FACTORY BY-PRODUCTS India is emerging as a major producer of fruits and vegetables in the world. The country produced about 50 Mt of fruits and 90 Mt of veg
Sickling occurs in deoxyhemoglobin S, but not in oxyhemoglobin S. Oxyhemoglobin has a small hydrophobic \"pocket\" in a ß chain region located in the interior of the protein. In de
The diet prescription The diet prescription designates the type, amount and frequency of feeding based on an individual's disease process and disease management goals. The dis
Q. What is the difference between mussels and octopuses regarding their circulatory systems? How does that difference influence the mobility of these animals? Cephalopod mollus
general characteristics of phylum chordata
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