quiz 13 g

Which of the following is NOT consistent with Erwin Chargaff’s findings (about the content/percentage of nucleotides in DNA)?

(C + G) = (A + T)

Which of the following is the complementary strand for 5' TCGCGAGAGG 3'?

5' CCTCTCGCGA 3'

What is the complementary strand for 3' CTGTTCAATGCTAG 5'?

5' GACAAGTTACGATC 3'

In the Meselson-Stahl experiment, what would you observe if you let the cell divide many generations and load a fraction of the DNA into the centrifugation tube?

Nearly all DNA will be at the top of the tube

What would happen if a mutation eliminated the 5'-3' exonuclease activity of DNA polymerase I?

After replication the RNA primers would remain in the DNA

In prokaryotes, which enzymes have proofreading ability?

Both Pol I and III

In prokaryotes, which enzyme is NOT involved in DNA replication?

DNA polymerase II

Which sequence is more likely to be found within an origin of replication?

5' ATTAAATTAATTTTAAT 3'

Which statement about telomeres is false?

It is longer in somatic cells that no longer divide because DNA shortening no longer occurs

Which of the following is NOT true of telomerase?

It uses RNA as the primer