DNA/RNA Intro Quiz
1. Which of the following is NOT one of the bases in a DNA molecule?
a. adenine
b. cytosine
c. uracil
d. thymine
e. guanine
2. Cytosine will form a base pair only with:
a. cytosine
b. adenine
c. thymine
d. uracil
e. guanine
3. What is a nucleotide?
a. a phosphate, five-carbon sugar, and a nitrogen base
b. a group of linked amino acids
c. one half of a DNA molecule
d. a protein, a sugar, and a phosphate
e. a phosphate, a six-carbon sugar, and a nitrogen base
4. The weak bonds between complementary nitrogen bases involve:
a. RNA
b. DNA
c. Hydrogen
d. five-carbon sugars
e. sulfur
5. DNA assumes a form termed what?
a. a triple-linked chain
b. a six sided figure
c. a step ladder
d. a double helix
e. a triple helix
6. DNA may be described functionally as:
a. an enzyme
b. a source for RNA production
c. an arrangement of mRNA molecules
d. a sink for disposal of RNA
e. a protein
7. Where is the messenger RNA synthesized in a cell?
a. nucleus
b. mitochondria
c. ribosome
d. endoplasmic reticulum
e. golgi body
8. Which of the following correctly describes messenger RNA?
a. single stranded
b. uracil replaces thymine
c. many sugar to phosphate bonds occur
d. the ribose sugar has an oxygen on the #2 carbon
e. all of the above
9. Which of the following are correct types of RNA?
a. mRNA
b. qRNA
c. tRNA
d. a and c
e. all of the above
10. The directions used in protein synthesis are provided by:
a. mRNA
b. centromere
c. RNA in the ribosomes
d. tRNA
e. qRNA
11. Given the following DNA strand, which of the following is its complementary mRNA?
G G A C T G A T T
(A) C C T G A C T A A
(B) C C U G A C U A A
(C) G G A C T G A T T
(D) T T A G T C A G G
12. The sugar in RNA is _____, the sugar in DNA is _______
(A) deoxyribose, ribose
(B) ribose, deoxyribose
(C) ribose, phosphate
(D) ribose, uracil
13. A gene is:
(A) a segment of DNA that codes for a protein
(B) a set of homologous chromosomes
(C) a molecule within DNA
(D) a type of pants
14. The DNA side strands are made of alternating
(A) phosphates and sugars
(B) adenine and thymine
(C) cytosine and guanine
(D) adenine and guanine
15. Uracil always pairs with
(A) Adenine
(B) Thymine
(C) Guanine
(D) Cytosine
