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Explain Crossing Over in genetics?
Crossing over is when the arms of homologous chromosomes exchange segments (and therefore genes) with each other. Recall that one of the homologues originally came from the father's sperm and the other came from the mother's egg.
During Prophase I of Meiosis the homologous chromosomes pair up to form a tetrad. The arms of the chromatids overlap, and can sometimes swap portions. This exchange results in a genetic recombination of the parental genes, providing for genetic variation, the raw material for evolution.
MOLECULAR MECHANISM OF HORMONE ACTION - Once a hormone enters the bloodstream it can reach almost any cell in the body. However, each hormone affects only certain kinds of c
Q. Measurement of Colour in Foods? A number of instruments are used for colour measurements in food. a) A simple method is to match the colour of a food with coloured chips
Concerning the mixture of arterial with venous blood what is the difference between the human fetal circulation and the adult circulation? In the human fetal circulation there
Q What are the few representatives of the phylum Mollusca? Octopuses, Snails, oysters and squids are examples of molluscs. Q. In which habitats do molluscs live? Mollus
List out the endothermic and exothermic reactions taking place in our body
The fundamental contractile unit is the sarcomere. Each muscle cell apart from the nucleus, mitochondria and other structures contains parallel fibrils. Sarcomere is a subunit of t
Explain The physical work capacity tests? The physical work capacity tests include common tests like running staircases (Step test) or using a bicycle ergo meter or treadmill.
Ulcerative enteritis (quail disease) Ulcerative enteritis, caused by Clostridium colinum, is found in chicken, quails, pheasants, turkeys and some other birds. Clostridial or
How we attempt a question of phylum mollusca?
Physical Concepts of Plant Water Relation - Diffusion Diffusion is a spontaneous process that leads to net movement of a substance from a region of higher concentration to a r
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