D . Tt is heterozygous genotype written
To create bacteria that produce human insulin scientists insert the human gene of interest into the bacterial plasmid. This is a common method when we want to produce human insulin and is often used in genetic research.
Rigor mortis is a temporary taphonomic change that happens when death occurs. It is the stiffening of muscles as chemical changed in the muscle structure occur after death.
Your question is a bit confusing but I think I got it
I am crossing a heterozygous black male with a heterozygous black female
where black is dominant to white
The genotype ratio would be 1:1:2 with 1 homozygous dominant pig 1 homozygous recessive pig and 2 heterozygous pigs
The phenotype ratio would be 3:1 with three black pigs and one white pig
