Question

1.Imagine that you are observing an enzyme-catalyzed reaction in lab. Every time you add more enzyme, the reaction rate increases proportionally until the reaction rate suddenly levels off. No other chemicals were added, and no modifications were made in the experimental setting. Why do you think the reaction rate stopped increasing?

Select one:

a. The molecules of substrate were all bound to enzyme.

b. The molecules of substrate noncompetitively inhibited the enzyme.

c. The molecules of product competitively inhibited the substrate.

d. The enzymes were denatured.

e. The molecules of enzyme were used up in the reaction.

2. _____ is the differential reproduction of phenotypes; that is, some phenotypes and their associated genotypes are passed to the next generation more often than others.

3. What is the probability for a red-eyed male that mates with a white-eyed female to have a male that has red eyes? Red eyes are dominant to white eyes. f you cross RrYy and RRyy pea plants, what fraction of the offspring will have round peas? R = round, r = wrinkled, Y = yellow, y = green

Answer

Answer 1