Question: Which component of a DNA nucleotide could be removed without breaking the polynucleotide chain?

Answer: thymine

Question: The X-ray diffraction pattern for DNA suggested to Wilkins and Franklin all of the following features about DNA EXCEPT:

Answer: in a DNA molecule, A pairs with T and G pairs with C.

Question: By the early 1900s, scientists had determined that heritable information existed as discrete units called genes, which were located on ________.

Answer: chromosomes

Question: In a DNA molecule, base pairing occurs between

Answer: adenine and thymine.

Question: DNA polymerase, before any proofreading by repair enzymes, makes (on average) one mistake for every:

Answer: 1,000 to 100,000 base pairs.

Question: Regarding the structure of DNA, which joins adenine and thymine and also guanine and cytosine?

Answer: hydrogen bonds

Question:

Answer: two

Question: All of the following occur during DNA replication EXCEPT the:

Answer: synthesis of totally new double-stranded DNA molecules.

Question: ________ breaks the hydrogen bonds between complementary base pairs during DNA replication.

Answer: DNA helicase

Question: In DNA, phosphate groups bond to:

Answer: