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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.
Competition - Processes in Succession The aggregation of individuals in an area leads to inter specific and intra specific competition. The competition is usually for
What is the meaning of Chelicifore? These feeding mouthparts are found on most, pycnogonads. Though the proboscis is the main feeding structure in these animals when chelicifor
Phosphorylation of fructose-6-phosphate Phosphorylation of fructose-6-phosphate: This is an irreversible reaction, catalyzed byphosphofructo72Snase, (PFK- I) a rate-l
Q. What are the effects of somatostatin for the pancreatic hormonal secretion? Somatostatin inhibits both glucagon and insulin secretions.
What are enzyme cofactors? Some enzymes require other associated molecules to work. These molecules are known as enzyme cofactors and they can be, for example, organic ions lik
how is the problem of chromosome shortening addressed in eukaryotic organisms and how aging might be related to the problem
Define interaction of folate with vitamin B 12 ? Vitamin B 12 : For the conversion of folic acid to folinic acid, vitamin B 12 is required. Vitamin BIZ deficiency caus
What do you mean by Zoological Nomenclature? This trust is housed in the British Museum, London and is responsible for some of the most important literature in Zoological Nomen
If 40% gene pool is heterozygous then what percentage should be homozygous?
How is HIV transmitted? What is the disease caused by this virus? HIV (human immunodeficiency virus) is supposed to be transmitted by blood, semen, maternal milk and vaginal se
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