In humans, a mutation in the phenylalanine hydroxylase gene causes phenylketonuria (PKU), which is characterized

by a wide variety of medical problems. This is an example of epistasis. Indicate whether the statement is true or false.


False - pleiotropy

Biology & Microbiology

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In a pedigree, a person whose symbol is filled in and who is associated with the Roman numeral II is ____

a. affected by the trait and in the second generation b. not affected by the trait and in the second generation c. affected by the trait and is the second-oldest child in the family d. not affected by the trait and is the second-oldest child in the family e. affected by the trait and has an identical twin

Biology & Microbiology

Carrier proteins are often used by the cell to transport ____

a. H2O b. proteins c. amino acids d. steroid hormones e. CO2

Biology & Microbiology

A simple sugar is composed of equal parts carbon and water, which gave rise to the general name of any sugar as a ________.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

During energy transformations, the majority of energy is converted to

a. chemical bonds b. heat c. ATP d. glucose molecules

Biology & Microbiology