A genotype is the genetic coding of a trait, so it's a paired combination of genes. A genotype has two alleles, which can be dominate or recessive, but overall the answer should be <span>a paired combination of genes</span>
Leftover radiation from the big bang is your answer hope i helped
10 is 4
11 is 3
15 is 3 (where it says 3 ok)
Nitrogen Fixation. Good luck :)