Answer:
A.Fred's musical genes
Step-by-step explanation:
Genotype: In biology, the genotype is described as one of the different parts of the genetic makeup of a single cell which is associated with an individual and is responsible for determining one of its specific characteristics. Genotype was discovered by one of the plant physiologists, geneticist, and botanists named Wilhelm Johannsen during 1903.
In other words, it refers to the "genetic constitution" of an organism including human beings and animals.
As per the question above, Fred's genotype is best described as "Fred's musical gene".