Translation begins on the lagging strand at the start codon in nucleus at the replication fork TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following has been used as an evidence that primitive life forms lacked both DNA and enzymes? Advanced cells lack RNA RNA can both code genetic information and act as a catalyst All of these DNA and enzymes are only present in the most advanced cells TRUE ANSWER : ? YOUR ANSWER : ?
AUG codes for methionine act as a initiation code termination code propagation code elongation code TRUE ANSWER : ? YOUR ANSWER : ?
How many amino acids will be encoded by 5' GAU GGU UGA UGU 3' sequence? Four One Two Three TRUE ANSWER : ? YOUR ANSWER : ?
The genetic code is degenerated. Which of the following codons represents the principle of degeneracy? UAA and UAC AUG and AUA CAU and CAC UUA and UUC TRUE ANSWER : ? YOUR ANSWER : ?
In prokaryotes, AUG encodes N-formyl methionine a stop codon methionine alanine TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following techniques was carried out by Nirenberg and Matthaei in 1961 to determine the first codon? Labeled peptide binding to a ribosome None of these In vitro synthesis of a polypeptide using UUUUU Mixed co-polymer mRNA synthesis TRUE ANSWER : ? YOUR ANSWER : ?
The codons which do not specify an amino acid are called termination code initiation code none of these propagation code TRUE ANSWER : ? YOUR ANSWER : ?
In protein synthesis in prokaryotes None of these the initiating amino acid is phenyl alanine the initiating amino acid is methionine the initiating amino acid is N- formyl methionine TRUE ANSWER : ? YOUR ANSWER : ?
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? Density gradient centrifugation Restriction digests of the rII gene Gel electrophoresis Frameshift mutagenesis TRUE ANSWER : ? YOUR ANSWER : ?