Answer:
1) Aa refers to the heterozygous of the genes. In this gene, both allele are different from one another.
2) AA is a gene which is homozygous in nature. Homozygous means that both allele are the same. Capital letters i. e. AA is used for the trait that is dominant.
3) aa is a gene which is homozygous in nature. Lower case letters i. e. aa is refer for the trait that is recessive.
Humans require food to continue to function, we overeat, and undereat. The more food we have the better we wil live
Yes it is, an example is a group of animals not treated with it died, but the animals that were survived--
