Economic Importance of Bacteria and Fungi

May 20th, 2015
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Biotechnology or Industrial microbiology is defined as the application of organisms such as bacteria, fungi and algae to the manufacturing and services industries. These include:Fermentation processes, such as brewing, baking, cheese and butter manufacturing, Bacteria,

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The cyclic changes in the ovary and uterus are under the control of estrogen and progesterone hormones whose secretion is under the control of gonadotropic hormones secreted by anterior pituitary.Hormonal Control of Menstrual Cycle in Human FemaleDuring menstrual phase the levels of estrogen and progesterone falls considerably.This induces adenohypophysis to secrete FSH and LH.Increased levels of FSH stimulates the graafian follicle to mature and secrete estrogens. The rising level of estrogen, causes the endometrium to become thicker and more richly supplied with blood vessels. The level of estrogens in blood increases gradually for a few days and is at the peak on the 12thday of the cycle.The estrogen surge reduces FSH secretion and this in turn introduces LH surge within 12 hours i.e., on the 13thday of the cycle.LH causes ovulation and formation of corpus luteum.During post ovulatory phase corpus luteum secretes progesterone.Corpus luteum secretes progesterone, which performs the following functions:a) It facilitates the preparation of the endometrium of the uterus for receiving the blastocyst and its implantation. (whether fertilisation occurs or not)b) It in

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