Enrico's biological parents were both musicians, so he was born with a(n) that included exceptional musical ability, but because he was never exposed to musical instruments or instruction when he was adopted, he never developed his musical ability.

The answer is "genotype".

The genotype is the arrangement of genes in our DNA which is responsible of a specific characteristic.  

Genotype is the thing that makes the trait - the data inside a quality, or the hereditary cosmetics of a particular life form. Genotype is controlled by the cosmetics of something many refer to as "alleles," a word that alludes to the type of a quality that produces distinctive impacts.  

Genotype is the data contained inside two alleles. Genotype is the hereditary cosmetics of a living being and it results in a portion of the physical attributes of that life form.

answer; the confederacy could afford to move a large number of prisoners hundreds of miles but could not afford to fee and house the prisoners;