Which of the following statements is false?
a. In chain elongation, the amino acids are added to
the chain according to the codon sequence in the
messenger RNA.
b. Several ribosomes, called a polysome, can travel
along the messenger RNA molecule, translating
it at the same time.
c. The general shape of transfer RNA molecules is
uniform.
d. Enzymes found in the ribosome catalyze the
formation of the bonds in the new polypeptide.
e. None of these is false.
Answer: e
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The scientists responsible for the idea that RNA can act as a catalyst were
A. Watson and Crick. B. Beadle and Tatum. C. Altman and Cech. D. Lederberg and Stanley.
The controls of the cell cycle are like
a. the brakes of a bicycle. b. the pedals of a bicycle. c. the handles bars of a bicycle. d. the seat of a bicycle. e. more than one of these.
What is cellular aging and what causes its occurrence? What will be an ideal response?
Using the figure below, please identify the amino acid composition generated from the following RNA se-quence: CGA GGC UUA ACG
a. arginine-glycine-leucine-threonine b. arginine-glycine-phenylalanine-threonine c. proline-glycine-leucine-threonine d. proline-glycine-leucine-serine e. None of the above