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Oogenesis
Oogenesis is the formation of ovum from oogonial cells that are formed in the ovary from primordial germ cells. And as in spermatogenesis it involves meiosis to produce haploid ovum. You have learnt in the section on spermatogenesis that the differentiation of sperm occurs after the meiotic events. In oogenesis the process of first meiotic division is very prolonged; and it is during this process that growth and differentiation of oocyte take place. In many animals most events related to oocyte differentiation occur during prophase I of first meiotic division. In animals which produce yolk-laden eggs, this phase is divided into
Explain about the Fat metabolism - Ageing? With increasing age, the blood cholesterol and blood triglyceride levels gradually increase. Certain factors like the kind and amoun
Q. What do energy pyramids represent? The Energy pyramids represent the amount of accessible energy in each trophic level of the food chain.
R uminal tympany (Bloat) It is the over-distension of the rumen with gases which may be either frothy or free gas. The disease is characterized by change in silhouette of the
A In taxonomy, what is a "KEY" ? List the different types of keys. How are they prepared and what are they used for ?sk question #Minimum 100 words accepted#
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Explain the Structure and Functions of Kidney You would have got a clear idea as to where the kidneys are situated. Yes, the kidneys are located in the posterior part of the ab
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TER A T OGEN S - These are chemicals or drugs causing malformed foetus . The production of monsters or malformed foetus is called tertogeny or teratogenesis . Th
Problem 1: How does the FDA's post marketing surveillance system works? Show FDA's post marketing surveillance system Explain about Adverse Event reporting system and
Risk management option assessment : Identification of available management options Selection of preferred management option , including consideration of an appropriate saf
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