Which type of bond must be broken for water to vaporize?
A) ionic bonds
B) both hydrogen bonds and ionic bonds
C) polar covalent bonds
D) hydrogen bonds
E) both polar covalent bonds and hydrogen bonds
Answer: D
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The most common method used by clinical microbiology labs for identifying bacteria are ________.
A. biochemical B. DNA fingerprinting C. morphological D. PCR
Inversions occur when a portion of a chromosome is ________
a. relocated on a different chromosome b. lost c. repeated two or more times d. oriented in a reversed direction
Which pair of hormones influences the urinary system’s ability to manage salt retention?
a. ADH and oxytocin b. aldosterone and cortisol c. thymosin and thyroxine d. insulin and glucagon e. aldosterone and ANP
Albinism, lack of pigmentation in humans, results from an autosomal recessive gene (a). Two parents with normal pigmentation have an albino child
(a) What is the probability that their next child will be albino? (b) What is the probability that their next child will be an albino girl? (c) What is the probability that their next three children will be albino?