6. Crick demonstrated that the genetic code involved three bases and suggested that the code was degenerated. What experimental technique Crick conducted to suggest genetic code degeneration?
A. Gel electrophoresis
B. Density gradient centrifugation
C. Frameshift mutagenesis
D. Restriction digests of the rII gene
7. Codon that specify the amino acids often differs in the
A. first base
B. second base
C. third base
D. none of these
8. In some organelles in eukaryotes, the genetic code for some codons
A. differs from that used in prokaryotes
B. are same
C. are partially same
D. none of the above
9. The codons which do not specify an amino acid are called
A. initiation code
B. termination code
C. propagation code
D. none of these
10. The genetic code is degenerated. Which of the following codons represents the principle of degeneracy?
A. UAA and UAC
B. AUG and AUA
C. CAU and CAC
D. UUA and UUC
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