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Explain how early RNA molecules might have been able to respond to natural selection.
Every RNA molecule might have competed with slightly dissimilar RNA molecules for nucleotides. An RNA molecule that was more successful in getting nucleotides would have an advantage, and it would pass that advantage on to the new RNA molecules it formed by replicating.
cell wall of prokaryotic cell consist of what???
You need to prepare 500 ml of a solution containing 10 mM Tris, 0.15 M NaCl and 1 mg/ml SDS. At your work disposal are stock solutions containing 1 M Tris, 2.5M NaCl and 10% (w/v)
Dicotyledons (2,00,000 species) The dicot's are of diverse nature. The leaves are net veined, stem contains ring of vascular bundles, cambium tissue is present so secondary
1 ." Most of the genome does not code for protein, therefore 99% of the human genome is junk that serves no purpose". With specific reference to examples long and short non-coding
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A common biocontrol agent for the control of plant diseases is : 1. Baculovirus 2. Bacillus thuringiensis 3. Glomus 4. Trichoderma Trichoderma
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List the four phases of meiosis I, and briefly explain what occurs during each phase Prophase I: DNA coils into chromosomes, the nucleolus and nuclear envelope disappear, the m
Define the Dietary Requirements of phosphorus? We read in the previous section that the requirements of phosphorus are closely linked with those of calcium. The phosphorus req
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