Which hormones play a role in calcium metabolism?
Ans: PTH
calcitonin
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The size and shape of viral particles is largely governed by the size and packaging of the viral
A) envelope. B) enzymes. C) prophage. D) genome.
High concentrations of salt and sugar in foods
A. are useful in preserving the food. B. tend to draw water out of a cell. C. tend to force water into a cell, causing plasmolysis. D. have no effect on water availability. E. are useful in preserving the food AND tend to draw water out of a cell.
Gene duplication can result from _____
a. a normal crossover event b. exon shuffling c. unequal crossing over d. a point mutation e. alternative splicing
A bacteriophage that can integrate its genome into the host chromosome and not cause lysis of the host cell is said to be ________.
A. temperate B. virulent C. avirulent D. moderate