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′
D. 5′ UAAGCCU3′
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