Ch.7-1 What Does DNA Look Like
10 Questions
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Ch. 7 section 1 Quiz
Questions and Answers
- 1.Deoxyribonucleic acid or ________________ is the material that contains the information that determines the traits a living thing inherits.
- A.
Nucleotide
- B.
DNA
- C.
Thymine
- D.
Cytosine
- 2.____________________ is one of the four possible bases in a string of DNA and it pairs with adenine.
- A.
Nucleotide
- B.
DNA
- C.
Thymine
- D.
Cytosine
- 3.__________________ is a subunit of DNA that consists of a sugar, a phosphate, and a nitrogenous base.
- A.
Nucleotide
- B.
DNA
- C.
Thymine
- D.
Cytosine
- 4._____________________ is the complementary base to guanine.
- A.
Nucleotid
- B.
DNA
- C.
Thymine
- D.
Cytosine
- 5.What letters represent the four bases?
- A.
A, B, C, D
- B.
W, X, Y, Z
- C.
A, T, G, C
- D.
E, Y, A, O
- 6.Using X-ray diffraction, what did Rosalind Franklin show the shape of DNA to be?
- A.
A circle
- B.
A spiral
- C.
A square
- D.
A line
- 7.Watson and Crick built a DNA model like a
- A.
Long, twisted ladder
- B.
Piece of twine
- C.
Straight line
- D.
Pyramid
- 8.The sides of the DNA "ladder" are made of
- A.
Guanine and thymine.
- B.
Adenine and cytosine.
- C.
Sugar and phosphate
- D.
Helixes and twists.
- 9.The "rungs" of the DNA ladder are
- A.
A pair of bases
- B.
A pair of sugars
- C.
A pair of phosphates
- D.
A set of proteins
- 10.To be copied, a DNA molecule splits
- A.
Across the top
- B.
Down the middle
- C.
Along the sides
- D.
Along the phosphates
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