The human disease phenylketonuria has symptoms that include mental problems, chronic skin rashes, and reduced hair and skin pigmentation. Phenylketonuria can be caused by a mutation in a single gene.

Phenlyketonuria is an example of pleiotropy. Based on this, it can be concluded that pleiotropy occurs when

A.
a single gene influences multiple traits.
B.
a trait is influenced by both genes and environment.
C.
a trait is not influenced by genes.
D.
a single trait is influenced by many genes.

Iwill mark you as brainliest pls 1) scientists can insert a gene into a bacterium. how does this biotechnology individuals with diabetes? a) a person with diabetes can regulate insulin production by eating products that contain the special bacterium and the new gene.b) the bacterium itself can be used as a treatment for a person with diabetes because it can deliver the genes for human insulin to that person’s cells. c) the insertation of a gene into a bacterium allows scientists to modify the gene that regulates insulin production. the new gene for human insulin can then be reinserted into someone who has diabetes.d) when the bacterium reproduces, it passes the gene for human insulin to its offspring. the offspring form a colony of bacteria that contain the gene for human insulin, which can then be used to produce insulin for a person with diabetes.