The genetic code is universal except for rare exceptions in mitochondria and some protozoa species-specific kingdom-specific universal TRUE ANSWER : ? YOUR ANSWER : ?
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 TRUE ANSWER : ? YOUR ANSWER : ?
In prokaryotes, AUG encodes N-formyl methionine methionine a stop codon 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 In vitro synthesis of a polypeptide using UUUUU Mixed co-polymer mRNA synthesis None of these TRUE ANSWER : ? YOUR ANSWER : ?
The sequence of one strand of DNA is: 5' ATTGCCA 3', what is the sequence of the other strand? 5' ATTGCCA 3' 5' TGGCAAT 3' 5' UAAGCCU3' 5' TAACGGT 3' TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following has been used as an evidence that primitive life forms lacked both DNA and enzymes? RNA can both code genetic information and act as a catalyst Advanced cells lack RNA 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 termination code initiation code elongation code propagation code 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? Gel electrophoresis Frameshift mutagenesis Density gradient centrifugation Restriction digests of the rII gene TRUE ANSWER : ? YOUR ANSWER : ?
How many amino acids will be encoded by 5' GAU GGU UGA UGU 3' sequence? One Three Four Two TRUE ANSWER : ? YOUR ANSWER : ?
Bacterial protein called catabolic activator protein (CAP) is an example of None of these negative control of gene expression second type of positive control of gene expression positive control of gene expression TRUE ANSWER : ? YOUR ANSWER : ?