צרו קשר עוד היום





GRE BIOCHEMISTRY - שאלות לדוגמה במבחן

When transported out of the phloem sucrose is converted to starch by which of the following organelles in root cells?

a. Vacuoles.

b. Lysosomes.

c. Peroxisomes.

d. Mytochondria.

e. Plastids.

Which of the following is most likely to reduce competition in sympatric, closely related species?

a. Darwinian Fitness.

b. Kin selection.

c. Niche Overlap.

d. Stabilizing selection.

e. Character displacement.

The eigenvalues of Hermitian operator are always

a. Real

b. Imaginary

c. Degenerate

d. Linear

e. Positive

If the genetic code consisted of four bases per codon rather than three, the maximum number of unique animo acids that could be encoded would be:

a. 16

b. 64

c. 128

d. 256

e. 512

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