681. Codon that specify the amino acids often differs in the
A. first base
B. second base
C. third base
D. none of these

682. 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

683. The codons which do not specify an amino acid are called
A. initiation code
B. termination code
C. propagation code
D. none of these

684. 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

685. The sequence of one strand of DNA is: 5′ ATTGCCA 3′, what is the sequence of the other strand?
A. 5′ TAACGGT 3′
B. 5′ TGGCAAT 3′
C. 5′ ATTGCCA 3′

686. In prokaryotes, AUG encodes
A. methionine
B. N-formyl methionine
C. a stop codon
D. alanine

687. How many amino acids will be encoded by 5′ GAU GGU UGA UGU 3′ sequence?
A. One
B. Two
C. Three
D. Four

688. In protein synthesis in prokaryotes
A. the initiating amino acid is N- formyl methionine
B. the initiating amino acid is methionine
C. the initiating amino acid is phenyl alanine
D. none of the above

689. AUG codes for methionine act as a
A. initiation code
B. elongation code
C. termination code
D. propagation code

690. Translation begins
A. at the replication fork
B. on the lagging strand
C. at the start codon
D. in nucleus

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