During meiosis, genetic recombination may occur more than once through the process of cell division, resulting in an increase in genetic variability.
They are used to directly amplify segments of dna
B water pollution is the answer
Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor. These structures may or may not have the same function in the descendants. They all have the same basic pattern of bones. They inherited this pattern from a common ancestor. However, their forelimbs now have different functions
<span>The answer is Leukoplakia.
When you have this condition, there is a thickened, white patches that form on
your gums, the interiors of your cheeks, the bottom of your mouth and, occasionally,
your tongue. These patches can't be scratched off. Specialists don't know what the
source of leukoplakia is but consider chronic irritation from tobacco — whether
dipped, smoked, or chewed — to be the main reason in its development. Most
leukoplakia patches are noncancerous meaning that they are benign, though some
show initial signs of cancer. Cancers on the bottom of the mouth can happen
next to areas of leukoplakia. And white areas varied in with red areas
(speckled leukoplakia) may specify the potential for cancer. </span>
