Nucleotide!
When attached in a polymer, they become a nucleic acid.
It would belong to the group known as the Alkane which have the general form
I think b would fit more as the mitochondria, d would be the endoplasmic reticulum, and e would be lysosomes
We suppose the black fur is A and the white fur is a. The capital letter represents the dominant. Then the heterozygous black male is Aa and homozygous white female is aa. Then the offspring has two types, Aa and aa. The possibility of these two is equal and both are 50%.
