DNA Structure and Replication What is the range of melting point temperatures (Tm) for most DNA molecules? 60 to 80°C 70 to 90°C 50 to 60°C 80 to l00°C 60 to 80°C 70 to 90°C 50 to 60°C 80 to l00°C ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication What is the approximate percentage of repetitive DNA sequences in human DNA? 20 to 30% 10 to 20% 40 to 50% 30 to 40% 20 to 30% 10 to 20% 40 to 50% 30 to 40% ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication Which of the following is an active site on its single polypeptide chain for DNA Polymerase I? 3' → 5' exonuclease 5' → 3' exonuclease 5' → 3' polymerase All of these 3' → 5' exonuclease 5' → 3' exonuclease 5' → 3' polymerase All of these ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication The site on a bacterial chromosome that marks the initiation point for chromosome replication is called an initiation codon a promoter Pro Ori an initiation codon a promoter Pro Ori ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication The chromosomal DNA complexes with five types of histone as H1, H2A, H2B, H3 and H4 two types of histone as H1 and H4 four types of histone as H1, H2A, H3 and H4 three types of histone as H1, H2A and H4 five types of histone as H1, H2A, H2B, H3 and H4 two types of histone as H1 and H4 four types of histone as H1, H2A, H3 and H4 three types of histone as H1, H2A and H4 ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication DNA gyrase in E. coli adds positive supercoils to chromosomal DNA can be inhibited with antibiotics performs the same function as helicase in eukaryotes is required only at the oriC site adds positive supercoils to chromosomal DNA can be inhibited with antibiotics performs the same function as helicase in eukaryotes is required only at the oriC site ANSWER DOWNLOAD EXAMIANS APP
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