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Q. Is there an exchange of cells between the mother and the fetus through the placenta?
Under usual conditions there is no passage of cells across the placenta during gestation and the placenta has a smooth mucosa separating the richly vascularized region in contact with the mother's endometrium from the umbilical cord in contact with the fetal blood this barrier is called as placental barrier although permeable to some substances (selective permeability) the placental barrier forbids the passage of cells.
describe the discovery of new fossil evidence for evolution
Glycosylation: The covalent addition of the sugar moities to N or O atoms present in the side chains of various amino acids of certain proteins, usually occuring within the Golgi
Q. What are the main chemical compounds that destroy the ozone layer? The major chemical compounds that destroy the ozone layer are the CFCs, chlorofluorocarbons, or freons, su
Why do roots of many swamp plants have a special morphology? Swamp and marsh plants usually present supporting roots that ramify from portions of the stem above the ground help
What else is carried in the plasma? In addition to proteins, plasma having salts (ions), glucose, lipids and amino acids, hormones, carbon dioxide and urea
Centrifugal Pump: This is available for clinical perfusion from 1976 (Bio Medicus Pump). It is disposable, causes less blood trauma and reduces the risk of massive air embolism.
Define Vitamin and Mineral requirements for preterm and low birth weight? Care to be taken for calcium and phosphorus intake in preterm infant. Due to inefficient sodium conser
Dr. Herbert discovers a cell and he is convinced it is a plant cell. However, as a student of his genetics class, you do not agree with him. You do not believe in microscopy and ph
sodium and potassium
A pp l i c a tion s of transgenic animals Current applications of gene transfer in farm animals include the improvement of product quality and quantity, disease resistan
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