The goal of eugenics is to
a. selectively engineer and change normal human
traits into what some perceive to be more
desirable characteristics.
b. eliminate genetic disorders.
c. produce genetically identical humans.
d. eliminate genes for abnormal behavior.
e. accomplish all of these.
Answer: a
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Which of the following does NOT correctly describe antidiuretic hormone?
A. It regulates water turnover in the mammalian kidney. B. ADH secretion is stimulated by high blood osmolarity. C. It ultimately acts to reabsorb more water. D. It exerts it effects via the cAMP pathway. E. It does not involve the use of aquaporin molecules.
The pores through which leaves exchange atmospheric gases with leaf cells during photosynthesis are the
A. sieve tube elements. B. guard cells. C. stomata. D. epidermal cells. E. petioles.
Which of the following is NOT a characteristic
of RNA?
a. single stranded b. ribose sugar c. nucleic acid d. bases are A, T, C, G e. phosphates attached to sugars
The major excretory organ(s) of the human urinary system is/are the
A. gallbladder. B. pancreas. C. liver. D. adrenal gland. E. kidneys.