By the end of the 21st century, it is expected that the human population will:a
increase at the fastest rate in the highly developed countries.
b. increase at the fastest rate in the less developed countries.
c. increase at similar rates in all countries.
d. decrease at similar rates in all countries.
e. achieve zero population growth.
e
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The main DISADVANTAGE of excessive gluconeogenesis during prolonged postabsorptive periods is that
A. continued protein breakdown can impair enzymatic activity and plasma membrane functions. B. carbohydrate buildup in the liver impairs its function. C. tissues other than the brain increase glucose utilization. D. the brain is exposed to levels of glucose that are too high. E. glucose absorption from the gut is impaired.
A human X-linked gene is
a. found only in males. b. more frequently expressed in females. c. found on the Y chromosome. d. transmitted from father to son. e. found on the X chromosome.
A genetic counselor would know that the probability of having a child affected with a condition
inherited as an autosomal recessive would be: a. 0.5 or 50% if both parents were homozygous normal. b. 0.5 or 50% if both parents were heterozygous. c. 0.25 or 25% if both parents were homozygous normal. d. 0.25 or 25% if both parents were heterozygous. e. 0% if both parents were heterozygous
Apoptosis can be described as
A) programmed cell death. B) gastrulation. C) phagocytosis. D) neural tube formation.