Hello guys in this video we will discuss about , Do organism create its exact copies of themself so without wasting your time let get started --
Organism looks similar of body designs to be similar , the blue print for these design should be similar . The blue prints of life is DNA molecule that contain information for inhitance of feature from patents to next generation . The DNA in the cell - necules is the information source for making protein. If the information is different different protein will be made . Different protein will eventually lead to different budding design . Thus the basic events in reproduction is the creation of the DNA copies . The power make the exact copies of the organism is possible due to the pressunce of DNA. The process of copying the DNA will have some variation each time as a result , the DNA copy generated will be similar But may not be identical to the original. Thus surviving cell are similar to , but subtotaly different from each other . This in build tendency for variation during reproduction is the basis of evolution.
So after , discuss about does organism reproduce there exact copies we will discuss about importance of variation so let get start.
Importance of variation - Variation is useful for the survival of species over time . If some variation to be present in a few individual in a population , there could be some chance for them to survive . example -- If there were a population of bacteria living in the temperature were to ne increase by global warming , most of these bacteria would die , but the few variant resetent to heat would survive and grow further .
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