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What happens when the ovum is fertilized?
If the ovum is fertilized, there is no breakdown of endometrium and no menstrual flow. The fertilized ovum travels through uterine tube to the uterus where it becomes embedded in the wall and produces chorion gonadotrophins. This keeps corpus luteum intact enabling it to continue to secrete progesterone for the first 3-4 months of pregnancy, inhibiting the maturation of ovarian follicles. During that time, placenta develops and produces oestrogen, progesterone and gonadotrophins. The placenta provides an indirect link between the circulation of the mother and that of the foetus. Through the placenta, the foetus obtains maturational materials, O2, antibodies and gets rid of CO2 and other waste products.
Q. What are the main respective constituents of cell walls in bacteria, protists, fungi and plants? In bacteria the cell wall is made of peptidoglycans, amongst protists algae
Primary Prevention: Primary prevention should have the following goals: i) Ascertaining at the risk population and the high risk situations where stressful life events a
how fertilization occur in human?
In ancient Greece the father of Medicine, Hypocrates, described a method of diagnosing diabetes mellitus by tasting the patient's urine. What is the physiological explanation for t
Protein X has an absorptivity of 0.4 mL . mg -1 . cm-1 at 280nm. What is the ab sorbance at 280 nm of a 2.0 mg. mL-1 solutionof protein X ? (Assume the light path is 1 cm).
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Hybridoma is the clone of plasmacytoma cells which secrete a monoclonal antibody; commonly produced by the fusion of peripheral or splenic plasma cells taken from the immunized mo
what is the classification of poisonous arthropods according to their mode of toxicity to human
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