Which of the following was the first protein whose tertiary structure was determined?
A) myoglobin
B) insulin
C) actin
D) hemoglobin
E) collagen
Ans: A) myoglobin
Biology & Microbiology
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The active maintenance of a constant environment is referred to as:
A. homeostasis. B. equilibrium. C. stability. D. symmetry. E. balance.
Biology & Microbiology
An environment would be considered harsh to an organism if:
a. it would be difficult for the individual to maintain homeostasis. b. the temperatures are extreme. c. salinity varies. d. pressure gradients are large. e. light levels are low.
Biology & Microbiology
Which antibody is involved in allergic reaction?
a. IgA b. IgD c. IgE d. IgG e. IgM
Biology & Microbiology
Varieties of plants in which self-fertilization produces offspring that are identical to the parents are referred to as
A) hybrids. B) the F2 generation. C) monohybrid crosses. D) true-breeding.
Biology & Microbiology