In people with PKU, phenylalanine from dietary proteins cannot be converted to tyrosine

a. True
b. False


True

Biology & Microbiology

You might also like to view...

Male frogs give calls that attract female frogs to approach and mate. Researchers examined mating calls of closely related tree frogs in South America. If reinforcement is occurring, what would you expect if you compare the calls of the two species

in zones of sympatry versus zones of allopatry? A) Calls would be about the same in both areas. B) Calls would be more similar in areas of sympatry. C) Calls would be more different in areas of sympatry.

Biology & Microbiology

Your kidneys filter your blood about _____ times per day and reabsorb _____% of the water entering the renal tubules, _____% of the electrolytes in the blood, and _____% of the glucose and amino acids that were filtered out of the blood in the glomerulus

A. 60; 99.9; 99.9; 100 B. 100; 50; 50; 99 C. 75; 100; 60; 90 D. 40; 99.9; 100; 75 E. 10; 80; 25; 70

Biology & Microbiology

In E. coli, the cya gene encodes adenylate cyclase. Will cells that are cya? be able to grow on medium that contains lactose as the sole carbon source? Why or why not?

What will be an ideal response?

Biology & Microbiology

Consider the following reaction at equilibrium: CO2 + H2OH2CO3. (see diagram) What would be the effect of adding additional H2O?

A) It would drive the equilibrium dynamics to the right. B) It would drive the equilibrium dynamics to the left. C) Nothing would happen because the reactants and products are in equilibrium. D) Reactions in both the directions will slow down.

Biology & Microbiology