Each intact ribosome consists of a large and a small subunit made mostly of catalytic rRNA. A ribosome also consists of:
a. structural proteins
b. free amino acids
c. DNA
d. lipids
e. enzymatic proteins
a
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Which of the main taste types for which we have receptors is important for detecting possible toxic substances?
A. salty B. sweet C. sour D. bitter E. salty and sweet
Which is/are true of viruses?
A. They may suppress the production of MHC Class I protein. B. They may produce an MHC Class I mimic protein. C. They may prevent cell suicide. D. They may bind to MHC class II antigens. E. They may suppress the production of MHC Class I protein, they may produce an MHC Class I mimic protein, AND they may prevent cell suicide.
Approximately, how many gene products are
involved in the synthesis of melanin?
a. 10 b. 25 c. 50 d. 100 e. 1000
Supertasters for the chemical PTC are ____________
A. homozygous dominant B. heterozygous C. homozygous recessive D. either homozygous dominant or homozygous recessive E. either homozygous dominant or heterozygous