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DNA Practice Qs

Biology Honors 1

QuestionAnswer
What stores information in a cell? d. DNA
What happens when a piece of DNA is missing? c. Genetic Information is lost
Because of base pairing in DNA, the percentage of b.thymine molecules in DNA is about equal to the percentage of adenine molecules
The percentages of guanine bases in chicken DNA should be around c. 21.5%
What structural problem prevents adenine from pairing with guanine? d. the bases are both long
Which of the following statements correctly describes Chargaff’s contribution to the study of DNA? c.Chargaff showed that adenine and thymine were found in equal percentages in DNA, but he did not know this was because of base-pairing.
In the Hershey-Chase experiment, what happened to the bacteria that had been infected by viruses that had radioactive DNA, and to the bacteria that had been infected with viruses that had been marked with radioactive proteins? a.The bacteria infected with viruses that had radioactive DNA had become radioactive. The bacteria that had been infected with viruses marked with radioactive proteins were not radioactive.
The table in Figure 12–4 shows the percentages of bases in a DNA sample. How much Thymine should you expect to find in the sample? a. 22%
Which of the following forms a base pair with thymine? b.adenine
During DNA replication, a DNA strand that has the bases CTAGGT produces a strand with the bases b.GATCCA.
RNA contains the sugar a.ribose.
Unlike DNA, RNA contains b.uracil.
Created by: Patricia13