Harmful because they change how the genes are supposed to form and they can give disorders at times.
Think about the actual physical process happening in the cell - the allele (or versions of a gene) are literally physical pieces of DNA strung together into chromosomes. And as the cell divides to form gametes, those chromosomes randomly assort themselves into the two new cells (conditional that each new cell gets one copy of each chromosome, in the case of gametes)...<span>
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bacteria are classified as microbes
Water running from a drainage to basin D