Two basic patterns of reproduction have been observed among animals and these are asexual and sexual. In asexual reproduction an individual can give rise to daughter individuals by mitotic divisions of a part of its own body; no gametes are required. In sexual reproduction, genetically distinct two special sex cell called gametes, fuse to form […]
Patterns of Reproduction in Animals | Essay | Reproduction | Biology
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Activation of Egg by Sperm | Fertilization | Animals | Biology
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Some of the important theories concerning the activation of egg by sperm are as follows: 1. Bataillon’s Theory 2. Sensitization to Calcium Theory 3. Loeb’s Theory 4. Lillie’s Theory 5. Repressor Theory of Activation. 1. Bataillon’s Theory: Bataillon (1910, 11, 12 and 16) suggested that the exudation or the excretion of substances into the perivitelline […]
Essay on Transgenesis in Animals: Top 3 Essays | Transgenesis | Zoology
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Here is a compilation of essays on ‘Transgenesis in Animals’ for class 9, 10, 11 and 12. Find paragraphs, long and short essays on ‘Transgenesis in Animals’ especially written for school and college students. Essay on Transgenesis in Animals Essay Contents: Essay on the Introduction to Transgenesis Essay on the Mechanism of Transgenesis in Animals […]
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