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 All of these RNA can both code genetic information and act as a catalyst DNA and enzymes are only present in the most advanced cells Advanced cells lack RNA All of these RNA can both code genetic information and act as a catalyst ANSWER DOWNLOAD EXAMIANS APP
Genetic Code and Regulation AUG codes for methionine act as a initiation code termination code elongation code propagation code initiation code termination code elongation code propagation code 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? Mixed co-polymer mRNA synthesis Labeled peptide binding to a ribosome None of these In vitro synthesis of a polypeptide using UUUUU Mixed co-polymer mRNA synthesis Labeled peptide binding to a ribosome None of these In vitro synthesis of a polypeptide using UUUUU ANSWER DOWNLOAD EXAMIANS APP
Genetic Code and Regulation How many amino acids will be encoded by 5' GAU GGU UGA UGU 3' sequence? Two One Three Four Two One Three Four ANSWER DOWNLOAD EXAMIANS APP
Genetic Code and Regulation The genetic code is degenerated. Which of the following codons represents the principle of degeneracy? CAU and CAC UUA and UUC AUG and AUA UAA and UAC CAU and CAC UUA and UUC AUG and AUA UAA and UAC ANSWER DOWNLOAD EXAMIANS APP
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
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