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 Gel electrophoresis Frameshift mutagenesis Restriction digests of the rII gene Density gradient centrifugation Gel electrophoresis Frameshift mutagenesis 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? All of these DNA and enzymes are only present in the most advanced cells 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 RNA can both code genetic information and act as a catalyst Advanced cells lack RNA ANSWER DOWNLOAD EXAMIANS APP
Genetic Code and Regulation The genetic code is kingdom-specific species-specific universal 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 ANSWER DOWNLOAD EXAMIANS APP
Genetic Code and Regulation How many different codons are possible? An infinite number 64 3 20 An infinite number 64 3 20 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? 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 Mixed co-polymer mRNA synthesis ANSWER DOWNLOAD EXAMIANS APP
Genetic Code and Regulation The sequence of one strand of DNA is: 5' ATTGCCA 3', what is the sequence of the other strand? 5' TAACGGT 3' 5' ATTGCCA 3' 5' TGGCAAT 3' 5' UAAGCCU3' 5' TAACGGT 3' 5' ATTGCCA 3' 5' TGGCAAT 3' 5' UAAGCCU3' ANSWER DOWNLOAD EXAMIANS APP
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