61.Anything that increases the rate of mutations in a cell is called what? 62.The codon AUG is always in the first position for a protein. What does it signal? 63.What enzyme to the promoter on DNA to initiate transcription? 64.At the end of DNA replication, the daughter DNA has been formed by semiconservative replication. What does this mean? 65.Which site on the ribosome carries the growing polypeptide chain? 66.Which site on the ribosome holds the tRNA that carries the next amino acid? 67.When a STOP codon is reached on the mRNA chain, what happens? 68.What are mutations? 69.Once chromosomes were known to carry genes, the big question became which of the two compounds was the genetic material. What were the two compounds that were debated? 70.What sugar is found in RNA? In DNA? What is the difference in the sugars? 71.Using the dictionary of the genetic code (chart on page 338), what is always the first amino acid in a protein? 72.What is the suffix that identifies a substance as an enzyme? 73.What is the process in which a bacterial cell takes in DNA released by a different bacterial cell? 74.What molecule carries genetic information from the nucleus to the cytoplasm? 75.Why are DNA’s instructions copied on to a messenger to take the information to a ribosome? ( Why not send DNA itself?) 76.IF the codon code is CUUCCG, what is the anticodon? 77.Where does translation take place? 78.If the DNA code for an amino acid is a triplet of bases, what is the smallest change in the bases that could result in a change in the polypeptide produced? 79.Explain the difference in the lagging and leading strand.
61.Anything that increases the rate of mutations in a cell is called what? 62.The codon AUG is always in the first position for a protein. What does it signal? 63.What enzyme to the promoter on DNA to initiate transcription? 64.At the end of DNA replication, the daughter DNA has been formed by semiconservative replication. What does this mean? 65.Which site on the ribosome carries the growing polypeptide chain? 66.Which site on the ribosome holds the tRNA that carries the next amino acid? 67.When a STOP codon is reached on the mRNA chain, what happens? 68.What are mutations? 69.Once chromosomes were known to carry genes, the big question became which of the two compounds was the genetic material. What were the two compounds that were debated? 70.What sugar is found in RNA? In DNA? What is the difference in the sugars? 71.Using the dictionary of the genetic code (chart on page 338), what is always the first amino acid in a protein? 72.What is the suffix that identifies a substance as an enzyme? 73.What is the process in which a bacterial cell takes in DNA released by a different bacterial cell? 74.What molecule carries genetic information from the nucleus to the cytoplasm? 75.Why are DNA’s instructions copied on to a messenger to take the information to a ribosome? ( Why not send DNA itself?) 76.IF the codon code is CUUCCG, what is the anticodon? 77.Where does translation take place? 78.If the DNA code for an amino acid is a triplet of bases, what is the smallest change in the bases that could result in a change in the polypeptide produced? 79.Explain the difference in the lagging and leading strand.
dna-rna-tgt_questions-2.docx