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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.
Numerous receptors have intrinsic or tightly related enzyme activity. On the required of ligand to their extracellular face like receptors undergo a conformational change and acti
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Proteins of Animal Origin - Fish Fish: The edible portion is skeletal muscles of the body. Even though the skeletal muscles of different animals are basically similar, fish spe
A biomolecule is any molecule that is produced by a living organism, including large macromolecules like proteins, polysaccharides, lipids, and nucleic acids, as well as small mole
What are the result of Arterial Switch operation ? The operation is highly specialised. When carried out in experienced centers the mortality for simple TGA and TGA with VSD i
what is origin ofspharosome
Adverse effects of lamivudine Because lamivudine is also active against hepatitis B virus (HBV), HIV-positive patients with chronic HBV infection may experience a flare of hep
Which of the subsequent statements concerning platelets is INCORRECT. Platelets: a) Are between 1/2 and 1/3 the diameter of the red cell b) Are roughly disk-shaped c) Hav
DIVERSITY OF AMPHIBIANS ASSIGNMET IN BIOLOGY PLWASE HELP ME TO DO THIS ASSIGNMENT AND I CAN GET GOOD MARKS IN THIS ASSIGNMENT SO GIVE ME TNE ASSIFNMENT OF THIS TOPIC DIVERSITY OF A
What are protein hydrolysates? Proteins that have been treated with enzymes to break them down into amino acids or shorter peptides are referred to as protein hydrolysates. Pr
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