Genetic Code and Regulation How many different codons are possible? 20 64 An infinite number 3 20 64 An infinite number 3 ANSWER DOWNLOAD EXAMIANS APP
Genetic Code and Regulation In protein synthesis in prokaryotes the initiating amino acid is N- formyl methionine the initiating amino acid is phenyl alanine None of these the initiating amino acid is methionine the initiating amino acid is N- formyl methionine the initiating amino acid is phenyl alanine None of these the initiating amino acid is methionine ANSWER DOWNLOAD EXAMIANS APP
Genetic Code and Regulation 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 Mixed co-polymer mRNA synthesis In vitro synthesis of a polypeptide using UUUUU None of these Labeled peptide binding to a ribosome Mixed co-polymer mRNA synthesis In vitro synthesis of a polypeptide using UUUUU None of these ANSWER DOWNLOAD EXAMIANS APP
Genetic Code and Regulation How many amino acids will be encoded by 5' GAU GGU UGA UGU 3' sequence? One Four Two Three One Four Two Three ANSWER DOWNLOAD EXAMIANS APP
Genetic Code and Regulation Which of the following has been used as an evidence that primitive life forms lacked both DNA and enzymes? DNA and enzymes are only present in the most advanced cells 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 Advanced cells lack RNA RNA can both code genetic information and act as a catalyst All of these ANSWER DOWNLOAD EXAMIANS APP
Genetic Code and Regulation 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? Gel electrophoresis Frameshift mutagenesis Restriction digests of the rII gene Density gradient centrifugation Gel electrophoresis Frameshift mutagenesis Restriction digests of the rII gene Density gradient centrifugation ANSWER DOWNLOAD EXAMIANS APP
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