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Define effect on Human chorionic gonadotropin in Pregnancy?
Human chorionic gonadotropin (HCG) begins to increase immediately on implantation of the ovum and reaches a peak at around 8 weeks of gestation. It then declines to a stable value until birth. In the first 8-10 weeks, HCG maintains the corpus luteum which is the main source of oestrogens and progesterone in the early weeks of pregnancy. These hormones play an essential role in the development of the placenta.
CHEMICAL CHANGES DURING CLEAVAGE - 1. Synthesis of DNA occurs. 2. Synthesis of RNA (rRNA is absent, mRNA & tRNA are synthesized very little amount). 3.
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Movement is even controlled by organelles, cilia and flagella. These and the pseudopodia in the amoebas give these small creatures movement, something we associate with animals. Es
Why can mitochondria be considered the power plants of the aerobic cells? Ans) Mitochondria are the "power plants" of aerobic cells due to within them the final stages of the ce
Give two examples in each case of (a) continuous, (b) discontinuous variation in human populations. a) Continuous variation: for example, weight, height, intelligence, ha
Recovery of tar: the coke oven gas coming out from ovens is passed through a tower where liquid ammonia is sprayed. The tar and dust are removed and then recovered. Recover of
Q. Explain the process of Degradation of Proteins? Proteins are composed of amino acids combined by peptide linkages. The native proteins are resistant to attack by microo
Ground Water Ground water represents a major subterranean reservoir of fresh water. In general. it is not tapped by plants as it is too deep and does not suffer from loss due t
Minerals :- Magnesium Food Source Whole grains, nuts, legumes, green leafy vegetables Nutritional Functional role Essential nutrient: Deficiency is rare Co
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