The inorganic nonprotein components that participate in enzyme catalysis are known as
A. substrates.
B. reactants.
C. products.
D. cofactors.
E. coenzymes.
Answer: D
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Which cellular process will cause cells to become specialized?
a. Apoptosis b. Differentiation c. Gastrulation d. Fertilization e. Embryonic induction
A transport protein is most analogous to a
a. water pipe. b. subway train. c. light switch. d. voice identification device. e. television receiver.
Some members of the species D. bifasciata produce mostly female offspring if reared at or below 21°C. The causative agent of this condition (called sex ratio) is a protozoan infection that is lethal to most male larvae
How can you demonstrate that it is both inherited and extrachromosomal? A) Inject ooplasm of affected females into normal females and then mate these with normal males. B) Inject cytoplasm from somatic cells of an affected female into normal females and then mate them with normal males. C) Mate affected females with normal males and assess daughter somatic cells for presence of the protozoan. D) Perform reciprocal crosses of affected and normal individuals and examine the offspring for infection. E) Perform reciprocal crosses of affected and normal individuals and look for affected male offspring.
According to the IUCN's data, a smaller percentage of bird species than of coral reef-dwelling fish species are endangered.
Answer the following statement true (T) or false (F)