2 years ago

Genetic variation is the raw material of evolution. identify two different sources

1 answer:

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<span>The two different sources of variation is mutation and recombination. Mutations are changes in the DNA where a single change can have large effect in evolution when accumulated. It can </span>stimulate rapid evolution of populations by providing new genetic variation on which natural selection, genetic drift, or gene flow can act.

Meanwhile, DNA recombination involves the exchange of genetic material either between multiple chromosomes or between different regions of the same chromosome through sexual reproduction where genetic shuffling occurs. This shuffling is important for evolution because it can introduce new combinations of genes in every generation.

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Bacteria is a unicellular organism which can multiply very fast by binary cell division.
To get a number of divisions required for cell division: you can use the formula: 2 $x^{number of generations}$ = number of bacteria
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With this formula the first bacteria is taken into consideration since 1 bacteria gives two, then the two give four, then eight, 16...

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2 years ago