Genetic Code and Regulation How many different codons are possible? 64 3 An infinite number 20 64 3 An infinite number 20 ANSWER DOWNLOAD EXAMIANS APP
Genetic Code and Regulation In prokaryotes, AUG encodes a stop codon methionine N-formyl methionine alanine a stop codon methionine N-formyl methionine alanine 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? Density gradient centrifugation Frameshift mutagenesis Gel electrophoresis Restriction digests of the rII gene Density gradient centrifugation Frameshift mutagenesis Gel electrophoresis Restriction digests of the rII gene 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? Advanced cells lack RNA RNA can both code genetic information and act as a catalyst DNA and enzymes are only present in the most advanced cells All of these Advanced cells lack RNA RNA can both code genetic information and act as a catalyst DNA and enzymes are only present in the most advanced cells All of these 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 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 Labeled peptide binding to a ribosome ANSWER DOWNLOAD EXAMIANS APP
Genetic Code and Regulation The genetic code is universal except for rare exceptions in mitochondria and some protozoa kingdom-specific species-specific universal universal except for rare exceptions in mitochondria and some protozoa kingdom-specific species-specific universal ANSWER DOWNLOAD EXAMIANS APP