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Genetics Part 1a

Test Description: Quiz covering DNA structure, Function and History.

Instructions: Answer all questions to get your test result.

1) What stores information in a cell?

ADNA Bproteins CCells Dlipids

2) In what way is DNA like a book?

ADNA has information that is periodically updated. BDNA has stored information, that can be copied and passed on. CDNA has information wrapped in an identifying cover. DDNA has information organized with an kind of index.

3) Because of base pairing in DNA, the percentage of

Acytosine molecules in DNA is much greater than the percentage of guanine molecules. Bthymine molecules in DNA is about equal to the percentage of adenine molecules Cadenine molecules in DNA is about equal to the percentage of guanine molecules. Dadenine molecules in DNA is much greater than the percentage of thymine molecules.

4) What structural problem prevents adenine from pairing with guanine?

AThey lack the deoxyribose group. BThe bases are both long. CThey lack phosphate groups. DThe bases are both short.

5) Rosalind Franklin contributed to the understanding of DNA by

Afinding that DNA was nucleic acid made up of a long chain of individual nucleotides. Bconducting experiments that showed which nucleotides are complementary. Cfiguring out that DNA strands form a double helix. Dproducing images of DNA molecules using X-rays.

6) Which of the following forms a base pair with thymine?

Aguanine Bcytosine Cdeoxyribose Dadenine

7) Which scientist(s) figured out that the shape of a DNA molecule is a double helix?

AFranklin BHershey and Chase CWatson and Crick DGriffith

8) Which of the following is a nucleotide found in DNA?

Adeoxyribose + phosphate group + cytosine Bcytosine + phosphate group + guanine Cadenine + phosphate group + thymine Ddeoxyribose + phosphate group + polymerase

9) Which of the following are purines?

Acytosine and guanine Bcytosine and thymine Cadenine and thymine Dadenine and guanine

10) What are the building blocks of a DNA molecule?

Adeoxiribose and phosphate Bnucleotides Cproteins Dsugar

*select an answer for all questions

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