Download Quiz 4 - Suraj @ LUMS

[Bio101], Quiz 4
Solution
1. The transfer of genetic material from one bacterial strain to another is know as
a) Transcription, b) Transformation, c) Translation, d) Transduction.
2. Cytosine, Thymine and Uracil are a) pentose sugars, b) phosphate groups, c)
pyrimidine bases, d) purine bases
3. DNA replicates according to the a) conservative model, b) dispersive, c)
partial model, d) semi conservative model of replication.
4. During DNA replication the lagging strand is synthesized as ________ which
are then joined together by __________ to form a continuous strand. a) tRNA,
DNA polymerase b) mRNA, RNA polymerase c) Okazaki fragments, DNA
ligase d) DNA, DNA synthase
5. In prokaryotic cells DNA transcription occurs in the a) nucleus, b) rough ER,
c) cytoplasm, d) ribosomes.
6. In eukaryotic cells translation occurs in the a) cytoplasm, b) ribosomes, c)
rough ER, d) nucleus
7. RNA contains the following complement of nitrogenous bases a) thymine,
cytosine, guanine, adenine, b) thymine, cysteine, guanine, adenine, c) uracil,
cysteine,guanine, adenine, d) uracil, cytosine, guanine, adenine
8. The place on the ribosome where the first tRNA sits is called the a) amino acid
binding site, b) P site, c) A site d) anticodon
9. The genetic code uses a) 4 bases, b) 3 bases, c) 5 bases, d)3 amino acids, to
represent a single amino acid.
10. The genetic code is a) redundant, b) universal, c) a and b, d) none of these
11. All polypeptides have the same a) secondary structure, b) amino acid
sequence, c) first amino acid, d) DNA sequence.
12. Which of the following is not involved in the process of translation; a) rRNA,
b) tRNA, c) mRNA, d) DNA
13. Which of the following is not true about the structure of DNA? a) it is singlestranded, b)it is composed of sugar-phosphate sides on the ladder, c)
complementary base pairing holds the strands together, d) adenine always
pairs with thymine.
14. What is different about the structure of RNA compared to DNA? a) RNA is
single stranded and DNA double stranded, b) RNA has base pairing while
DNA does not, c) RNA has the base uracil instead of thymine, d) both a and c.
15. During _________ RNA is made and during ________ protein is made.
a) transcription......translation, b) replication...translation, c)
translation....transcription, d) translation....replication