Related Quizzes

DNA Quiz 1
DNA Quiz 2
DNA Quiz 3
DNA Quiz 4
DNA Quiz 5
DNA Quiz 6

DNA QUIZ 2

1. In the Hershey Chase Experiment, DNA was labeled with ____, and bacteriophage protein was labeled with _____.
radioactive phosphorous, radioactive sulfar
radioactive sulfur, radioactive phosphorous
codons, anticodons
DNA Polymerase, RNA polymerase

2. In the ladder anology of the DNA molecule, the "rungs" of the ladder are:
sugars
phosphates
paired nitrogenous bases
joined sugar and phosphate

3. Which of the following best describes the arrangement of the sides of the DNA molecule?
twisted
antiparallel
bonded
alternating

4. If a DNA molecule is found to be composed of 40% thymine, what percentage of guanine would be expected.
10%
20%
40%
80%

5. The enzymes that break hydrogen bonds and unwind DNA are:
primers
forks
helicases
polymerases

6. DNA replication results in:
2 completely new DNA molecules
2 DNA molecules that each contain a strand of the original
1 new DNA molecule, 1 old molecule is conserved
1 new molecule of RNA

7. During replication, what enzyme adds complimentary bases?
helicase
synthesase
replicase
polymerase

8. Transcription results in:
an amino acid chain
messenger RNA
complementary DNA
okazaki fragments

9. How many different amino acids are there?
3
20
100
an infinite number

10. A stretch of chromosome that codes for a trait can be called a(n):
chromatid
replication fork
gene
base-pair

11. In RNA, _____ codon(s) translate to ______ amino acid(s)
1, 1
3, 1
3, 3
1, 20

12. Translation begins:
at the replication fork
on the lagging strand
at the start codon
in the nucleus

13. A nucleotide consists of:
a phosphate and a base
a phosphate, and a sugar
a base and an amino acid
a phosphate, a sugar, and a base

14. The sugar in RNA is _____, the sugar in DNA is _______
deoxyribose, ribose
ribose, deoxyribose
ribose, phosphate
ribose, uracil

15. Which of the following is found on RNA but not DNA?
uracil
deoxyribose
phosphate
adenine

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