DNA Structure and Replication What is the main damaging effect of UV radiation on DNA? Single strand break Formation of thymine dimers Depurination Dehydration Single strand break Formation of thymine dimers Depurination Dehydration 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
DNA Structure and Replication What is the approximate size (in kb) of the E. coli genome? 4500 kilobase 6500 kilobase 5500 kilobase 3000 kilobase 4500 kilobase 6500 kilobase 5500 kilobase 3000 kilobase ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication Which of the following is used to determine the appropriate stringency (Wallace rule)? Tm = 4 x (No.of A:T base pair) + 2 x (No.of G:C base pair) Tm = 2 x (No.of G:C base pair) + 4 x (No.of A:T base pair) Tm = 69.3° + 0.41 (%)G+C -650/1 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 = 2 x (No.of G:C base pair) + 4 x (No.of A:T base pair) Tm = 69.3° + 0.41 (%)G+C -650/1 Tm = 4 x (No.of G:C base pair) + 2 x (No.of A:T base pair) ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication Replication in E. coli is initiated by the generation of short RNA primers using both (a) and (b) RNA polymerase primase reverse transcriptase both (a) and (b) RNA polymerase primase reverse transcriptase ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication The RNA primers used to initiate replication in E. coli are removed by helicase + ATP result in Okazaki fragments on leading strand are removed by Pol I are joined together by DNA ligase are removed by helicase + ATP result in Okazaki fragments on leading strand are removed by Pol I are joined together by DNA ligase ANSWER DOWNLOAD EXAMIANS APP
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