What analogy is used by the text to describe a hormone and the associated receptor?
What will be an ideal response?
Lock and key.
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The reason recessive genetic disorders are more frequent than disorders inherited as dominant is that ________
A) people carrying dominant genetic disorders always die before birth B) recessive genetic disorders are limited to persons of the same ethnicity C) carriers are not eliminated by the disease before passing the defective alleles on to their offspring D) dominant genetic disorders are never expressed in males
Which cranial nerves have a negative chronotropic effect on heart rate?
A) vagus nerves (CN X) B) trochlear nerves (CN IV) C) glossopharyngeal nerves (CN IX) D) hypoglossal nerves (CN XII)
Of the total inorganic components in bone, calcium accounts for what percent?
A) 17% B) 9.7% C) 39% D) 72% E) 0.72%
Which of the following can be calculated if the tidal volume and respiratory rate are known?
A) respiratory minute volume B) inspiratory reserve volume C) expiratory reserve volume D) anatomical dead space E) forced vital capacity