DNA Structure and Replication Which of the following species lack a 'classical' histone H1? Saccharomyces cerevisiae Arabidopsis thaliana Xenopus laevis Strongylocentrotus purpuratus Saccharomyces cerevisiae Arabidopsis thaliana Xenopus laevis Strongylocentrotus purpuratus ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication DNA gyrase in E. coli 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 adds positive supercoils to chromosomal DNA can be inhibited with antibiotics performs the same function as helicase in eukaryotes ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication Which histone(s) are associated with the linker DNA of a nucleosome? Histone H3 Histone H4 Histones H2A and H2B Histone H1 Histone H3 Histone H4 Histones H2A and H2B Histone H1 ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication In a cesium chloride gradient, DNA labeled with 15N and centrifuged will form a band below DNA containing 14N above DNA containing 14N with 14N-containing DNA all of these below DNA containing 14N above DNA containing 14N with 14N-containing DNA all of these ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication Which will require a higher temperature to denature? DNA with a high A-T content RNA with a high A-T content RNA with a high G-C content DNA with a high G-C content DNA with a high A-T content RNA with a high A-T content RNA with a high G-C content DNA with a high G-C content ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication What does ligase do during replication of DNA? Synthesizes the lagging strand Joins nicks in DNA strands Digests mRNA when it is no longer needed Makes copies of mRNA from DNA Synthesizes the lagging strand Joins nicks in DNA strands Digests mRNA when it is no longer needed Makes copies of mRNA from DNA ANSWER DOWNLOAD EXAMIANS APP
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