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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.
Conjugation – Protozoan Conjugation is characteristic of ciliates. The details vary from species to species. The general features can be observed in Paramecium sps. which has
Who was Gregor Mendel? Mendel is considered the father of Genetics. He was a monk, biologist and botanist born in Austria in 1822 and who died in 1884. During the years 1853 to
why is the cartilage more flexible than bone? in general, why does cartilage take longer to repair than bone?
Hypomagnesaemic tetany of calves Young calves in the age group of 2-8 weeks and fed whole milk or milk replacer are more likely to develop hypomagnesaemia due to inadequate ma
Q. Define biogeographic realm? Biogeographic regions are large areas that contain characteristic assemblages of animals and plants, d elineated on account of natural barriers s
Protoplasm Also known as bioplast . It is gelly like & semi liquid in appearance. It is translucent in nature. It is colourless, oderless, viscous, elastic & granu
To show the respiration of a plant Place the plant in a test tube held in a weighted wooden block. Put this in a bowl having lime water and cover the plant with a jar. Keep the
Q. Is monoculture a system that contributes to great biological diversity of an ecosystem? The Monoculture implies that in a large area a single crop (only one species of plant
classification of organisms in phylum protozoa according to their class,order,family,genus,species.
What are the functions of the osseous tissue? The major functions of the osseous tissue are: to give structural rigidity to the body and to delineate the spatial positioning of
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