Several different classes of enzymes are needed for the catabolism of carbohydrates. Which of the following descriptions best matches the function of a dehydrogenase?
(a) An enzyme that catalyzes the rearrangement of bonds within a single molecule.
(b) An enzyme that catalyzes a change in the position of a specific chemical group within a single molecule.
(c) An enzyme that catalyzes the oxidation of a molecule by removing a hydride ion.
(d) An enzyme that catalyzes the addition of phosphate groups to other molecules.
(c)
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Aug
A. is only used as the start codon. B. codes for methionine. C. determines the reading frame. D. is one of the stop codons. E. codes for methionine AND determines the reading frame.
In a certain plant, when individuals with blue flowers are crossed with individuals with blue flowers,
only blue flowers are produced. Plants with red flowers crossed with plants with red flowers sometimes produce only red flowers, although other times they produce either red or blue flowers. When plants with red flowers are crossed with plants with blue flowers, sometimes only red flowers are produced; other times either red or blue flowers are produced. Which gene is dominant? What will be an ideal response?
Agar is produced by
a. brown algae. b. red algae. c. phycobilins. d. foraminiferans. e. brown and red algae.
Given the following pedigree, what is the coefficient of inbreeding for individual IV-1?
A) 1/2 B) 1/4 C) 1/8 D) 1/16 E) 1/64