Newborn screening reveals that newborn Jessica has inherited phenylketonuria (PKU). Her parents are distraught at the diagnosis, but a nutritionist explains that Jessica can be treated, right away. The treatment for PKU is
A) nonheritable gene therapy.
B) heritable gene therapy.
C) exchange of her blood supply.
D) dietary.
D) dietary.
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Methanogens are classified as ____
a. Crenarchaeota only b. Euryarchaeota only c. Korarchaeota d. Nanoarchaeota e. both Crenarchaeota and Euryarchaeota
Which of these is a negative consequence of solid waste pollution?
A.People and wildlife are exposed to hazardous chemicals B.Contamination of ocean waters (garbage patches) C.Disruption of ecosystem services D.A and B are true. E.A, B and C are true.
What is another name for the cell membrane?
What will be an ideal response?
Penicillin works most effectively against gram-positive bacteria because:a
penicillin affects cell membranes. b. they have a thick peptidoglycan cell wall, and penicillin affects the synthesis of peptidoglycans. c. they have special protein channels that allow penicillin to enter the cell and halt the cell cycle. d. they are smaller than gram-negative bacteria and, thus, easily take up penicillin by diffusion. e. they contain prophages that negatively interact with penicillin.