__________ determined the structure of the molecule DNA
a. Crick and Wilkins
b. Watson and Crick
c. Franklin and Crick
d. Franklin
e. Watson, Crick, and Wilkins
B
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Dad has a genotype of AaBb. He can produce sperm with how many different genotypes?
A. four B. two C. five D. three E. one
A base at the first position of an anticodon on the tRNA would pair with a base at the ________ position of the mRNA
Fill in the blank(s) with correct word
Why must lactic acid be removed from muscle cells?
A The lactic acid can poison muscle cells. B The lactic acid can cause muscle cells to change into fat. C The lactic acid can cause muscle cells to change into nucleic acids. D The lactic acid will cause the cytoplasm to become aerobic and very diluted.
Several different classes of enzymes are needed for the catabolism of carbohydrates. Which of the following descriptions best matches the function of a mutase?
(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.