AP Bio Ch 14 DNA Structure & Function
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The structure of DNA is composed of two strands with complementary base pairing, allows cells to do this easily. The two strands can separate, with each strand serving as a template to generate a new complementary strand. Test out what more you know about the structure and function of DNA through this test!
- 1.Which is NOT a major function of the genetic material?
- A.
Store information
- B.
Catalyze chemical reactions
- C.
Replicate itself
- D.
Undergo mutation
- 2.Nucleic acid was first discovered in pus cells in
- A.
1824.
- B.
1869.
- C.
1912.
- D.
1931.
- E.
1953.
- 3.The amount of adenine is always equal to the amount of _______ in DNA.
- A.
Cytosine
- B.
Uracil
- C.
Guanine
- D.
Thymine
- E.
ATP
- 4.The X-ray diffraction photography of Rosalind Franklin and Maurice Wilkins was critical evidence of DNA.
- A.
Indicating that DNA has a double helix structure.
- B.
Showing equal numbers of purines and pyrimidines.
- C.
Showing the bases of DNA were held together by hydrogen bonds.
- D.
Revealing the structure of the deoxyribose sugar.
- E.
Of the location of each adenine, guanine, cytosine and thymine.
- 5.Because one original strand of the double-stranded helix is found in each daughter cell, the replication process is called
- A.
Proofreading.
- B.
Semiconservative.
- C.
Redundant.
- D.
Freeing of DNA.
- E.
Mutation positive.
- 6.Chargaff's rules showed that different species contain differing base compositions.
- A.
True
- B.
False
- 7.The complementary bases of DNA are located on the outside of the helix, with the sugar-phosphate backbone on the inside.
- A.
True
- B.
False
- 8.Complementary base pairing always pairs a purine with a pyrimidine.
- A.
True
- B.
False
- 9.Growth at two replication forks arising from a single origin of replication produce a "bubble" as daughter DNA molecules form.
- A.
True
- B.
False
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