Before messenger RNA is mature,
a. all exons are deleted and removed.
b. a cap and a tail are provided.
c. anticodons are assembled.
d. the transfer RNA transfers the messenger
RNA to the ribosome.
e. the single RNA strand duplicates itself in
much the same way as DNA
B
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The difference between innate immunity and adaptive immunity is that
A) adaptive immunity attacks pathogens; innate immunity attacks microbes. B) innate immunity targets cancers and transplants; adaptive immunity targets viruses and bacteria. C) innate immunity is fast and generalized; adaptive immunity is slow and specific. D) adaptive immunity releases cytokines; innate immunity produces antibodies.
n enzyme produced in response to the presence of a substrate is called
A) A promoter. B) A restriction enzyme. C) An operator. D) A repressible enzyme. E) An inducible enzyme.
The appearance of the chins at #3 is called the
a. dominant allele. b. genotype. c. offspring. d. recessive gene. e. phenotype.
Which of the following are the primary cellular sites for the recapture of energy from carbohydrates?
a. ribosomes b. lysosomes c. mitochondria d. endoplasmic reticula e. Golgi bodies