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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
If you observe symptoms of overall wilting, stunting, and thinning of the leaves, would you expect a foliar or root disease? Why?
P A TTERN OF GROWTH - 1 . ISOMETRIC - In it an organ grows at the same rate as the rest of body. External form of body is not changed. eg. fish, locust. 2 .
Explain Skin changes During Kwashiorkor? In many cases, dermatosis (changes in skin) is seen. Such changes are common in areas of friction. Dark pigmented patches, akin to sun-
What are the Risks of migration Eg Getting lost (blown off course or similar) and the effect of this when there is a limited fuel supply. Insufficient food to build
Ecological Significance - Conservation of Wildlife Besides serving as a valuable genetic reservoir, each species interacts with other species and plays a role in the transfe
Sound is a main mean of communication and entertainment and is also very effective alarm system for some animal. A loud and unwanted or unpleasant sound causes discomfort and is ca
Q. Discuss the evolution of implants in dentistry? The first use of Implants dates back to 600 A.D. in the Mayan population where intraosseous implantation of animal teeth or t
Importance of nutritional interaction :- Now being realized. Some nutrients are antagonistic to each other whereas others act synergistically. Examples of uniquely related
Q. After the blastula stage what is the following stage of the embryonic development? What is the passage from blastula to the next stage called? The blastula turns into gastru
Explain Continuous Murmurs and their characterstic in details? These murmurs are continuous throughout systole and diastole. It is due to continuous blood flow in the same dire
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