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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
Define Methods of Determination of Proteins and Amino Acid Content in Foods? The methods for protein quality evaluation are grouped under the following headings: I) Analytic
TRANSPLAN T PROCEDURE - Operation is done under general anaesthesia, duration 3-4 hrs. Cut is given in the lower abdomen. Donar's kidney is transplanted retroposistonicaly
Q. What are flight adaptations present by birds? Wings associated to a well-developed pectoral musculature, less accumulation, pneumatic bones of feces in the bowels due to the
What is Class Amphibia ? Class Amphibia takes its name from the Greek words "amphi" and "bios." Amphi means "both sides," or "both types," and bios means "life." This name-bo
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Milkers’ nodules Milkers’ nodules are caused either by cowpox virus, an orthopoxvirus or pseudocowpox virus, a parapoxvirus. These are relatively benign lesions that occur most co
Q. What are hormones? Hormones are substances collected by the circulation and secreted by the endocrine glands that act to produce effects upon specific tissues and organs and
Alfred Sturtevant and Seymour Benzer's studies of recombination in both Drosophila and bacteriophage demonstrated which of the following? A. The gene is an indivisible unit and
Define Prevention of Iron Deficiency? Iron deficiency anaemia accounts for approximately one-half or more of all the anaemia's seen worldwide. Iron deficiency without anaemia a
Define Proline It is a prominent amino acid found in fish and may contribute to sweetness. The sugars ribose, glucose and glucose-6-phosphate are flavour contributors, as is 5-
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