DNA Structure and Replication Without telomerase, what would happen to the ends of chromosomes after each round of replication? None of these Nothing would happen Chromosomes would become progressively shorter Chromosomes would get longer None of these Nothing would happen Chromosomes would become progressively shorter Chromosomes would get longer ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication DNA gyrase in E. coli performs the same function as helicase in eukaryotes is required only at the oriC site can be inhibited with antibiotics adds positive supercoils to chromosomal DNA performs the same function as helicase in eukaryotes is required only at the oriC site can be inhibited with antibiotics adds positive supercoils to chromosomal DNA ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication There is a single origin for DNA replication in bacteria. How many origins of replication are found in the much larger genomes of eukaryotes such as mammals? Thousands and tens of thousands One none of these About 100 Thousands and tens of thousands One none of these About 100 ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication How does ethidium bromide interact with DNA? It does not interact It binds to phosphate It intercalates between bases It binds to adenine It does not interact It binds to phosphate It intercalates between bases It binds to adenine ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication Which of the following is used to determine the appropriate stringency (Wallace rule)? Tm = 69.3° + 0.41 (%)G+C -650/1 Tm = 2 x (No.of G:C base pair) + 4 x (No.of A:T base pair) Tm = 4 x (No.of G:C base pair) + 2 x (No.of A:T base pair) Tm = 4 x (No.of A:T base pair) + 2 x (No.of G:C base pair) Tm = 69.3° + 0.41 (%)G+C -650/1 Tm = 2 x (No.of G:C base pair) + 4 x (No.of A:T base pair) Tm = 4 x (No.of G:C base pair) + 2 x (No.of A:T base pair) Tm = 4 x (No.of A:T base pair) + 2 x (No.of G:C base pair) ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication The role of primase is to cleave and unwinds short sections of DNA ahead of the replication fork synthesize an RNA primer to begin the elongation process proofread base pairing dismantle RNA primer cleave and unwinds short sections of DNA ahead of the replication fork synthesize an RNA primer to begin the elongation process proofread base pairing dismantle RNA primer ANSWER DOWNLOAD EXAMIANS APP
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