Mutations and crossing over during sexual reproduction
Explanation:
Mutations, the changes in the sequences of genes in DNA, are one source of genetic variation. Genetic variation can be a result of sexual reproduction during when chromosomes crossover during Meiosis I, which leads to the creation of new combinations of genes.
<h2>Genetic variation is increased by meiosis </h2><h2>because of recombination and independent assortment in meiosis, each gametes contain a different set of DNA. This produce a unique combination of genes in the resulting zygote.</h2>
Explanation:
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There is no overall charge to a water molecule, but there is a slight positive charge on each hydrogen atom and slight negative charge on the oxygen atom.
