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Mutations are the only kind of variability generating mechanism in prokaryotes and asexually reproducing organisms. But in eukaryotes where sexual recombination occurs, even in one generation there is a marked reshuffling of genes in the chromosomes which amplifies the genetic variability in a population. The kind of variability generated by recombination is tested by natural selection in as many genetic backgrounds as possible and in as short time as possible (say in one generation). Thus one of the greatest and fundamental advantages of sexual reproduction is the generation of variability. Provided the populations are large, even if mutations do not exist, the mechanism of sexual recombination alone would be generating new genotypes for very long time.
give the discriptive account of nerilla which belongs to class arciannelida in phylum annelida
conductometry and its uses in biological experiments
Explain the Mendel's Laws in genetics? Based on the results of his experiments, Mendel proposed three laws regarding the inheritance of traits: the Law of Segregation, the Law
What is the generic function of leukocytes? What are leukocytosis and leukopenia? The generic function of leukocytes is to contribute in the defense of the body against strange
Ultrasonic and sonic vibrations Cells of all types can be destructed by intense sonic and ultrasonic vibrations generated by magnetostrictive oscillations or peizo electric cry
Synthesis of Polyamine As the name of this class of compounds suggests, polyamines have several amino groups replacing hydrogen usually in alkyl chain e.g., putrescine is 1, 4
How are the fruits formed? The fecundation is in angiosperms triggers the release of hormones that act upon the ovaries. The ovary wall after that it develops into a fruit that
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Utilization of Soy Protein Concentrate Soy protein concentrates are used in food products for their nutritional characteristics or for their functional properties or for both.
Q. Show the Directly Visible Chemical Characters? Very few chemical substances in plants can be observed directly, but the few substances such, starch grains which are pres
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