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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.
Which of the following mediates the interactions among the splicing machinery and the mRNA transcript? A. Alpha helical structures within the RNA binding domain of the splicing
What are the phytoplankton and the zooplankton? The Phytoplankton and the zooplankton are divisions of the plankton. The phytoplankton includes the autotrophic floating beings:
Roller Pump: This is the type most commonly used in clinical perfusion. It has a circular metal housing inside which there is a rotating urn with two rollers fixed at 180 degrees
What are the forces that make water to flow within the xylem from the roots to the leaves? Water enters the roots because of the root pressure and a water column is maintained
What conclusion you can draw about microorganisms that you saw under microscope from the plaque of your teeth?
why frog respire through skin
Explain Procedure for Detection of Metanil Yellow? Carry out the exercise following the steps enumerated herewith. 1. Suspend the food sample in water and shake vigorously.
Discuss why Obelia is considered to be of special interest in Zoology as an animal showing an intermediate grade of organization.
Realization of P-D Polarity of Limb Realization of P-D polarity of limb expressed in a specified proximo-distal sequence of differentiation of limb pans is controlled through
Classification of hydrocolloids by function It must be clear to you now that gum ghatti, gum karaya, gum tragacanth ( classified as exudate gums) locust bean gum, guar g
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