These sorts of studies can help researchers determine the relative importance of nurture and nature in determining a trait. Nature here would refer to genetics passed down to an individual from its parents, whereas nurture refers to the environment the individual is exposed to.
Frequently wiping cutting boards with paper towels would reduce the risk of cross contamination because the residue of raw meat would be wiped off
Answer: Embryonic stem cells
Explanation: Cell differentiation is the process whereby an immature cell evolves to specialized form to perform its function. It take place in Embryonic stem cells.
You would have multiple isomers:
C=c-c=c-c
C=c=c-c-c
C-c=c=c-c