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WorksheetsBIO 30_Quiz 4 Practice
Total questions: 9
Worksheet time: 9mins
Name
Class
Date
1.
Which of the following is not true of the genetic material according to HJ Muller?
a)
Can carry all necessary biological information
b)
It should not mutate.
c)
Has stable molecular structure.
d)
It can duplicate itself.
2.
The scientist who observed that an avirulent strain of Streptococcus pneumoniae was transformed to become virulent and declared the presence of the transforming principle.
a)
Edmund Wilson
b)
Frederick Griffith
c)
Ernst Haeckel
d)
Freidrich Mischer
3.
Who are the scientists who proved that DNA is the genetic material of bacterial viruses (phages)?
a)
Wilkins and Franklin
b)
Zinder and Lederberg
c)
Hershey and Chase
d)
Avery, MacLeod and McCarty
4.
The components of a DNA nucleotide:
a)
D-ribose
b)
Nitrogen base
c)
Phosphate group
d)
2 Deoxy-D-ribose
5.
RNA differs from DNA in that RNA
a)
is antiparallel
b)
contains ribose as its sugar
c)
contains uracil instead of thymine
d)
is single stranded
6.
The mode of DNA replication:
a)
conservative
b)
semi-conservative
c)
non-conservative
d)
dispersive
7.
The following proteins/enzymes are needed during initiation of replication except
a)
ligase
b)
single strand binding proteins
c)
gyrase
d)
helocase
8.
Which is not true about the Okazaki fragments?
a)
synthesized discontinuously
b)
provides 3'OH
c)
1000-2000 nucleotides in prokaryotes
d)
short sequences
9.
The leading and lagging strands are synthesized one after the other.
a)
True/Correct
b)
False/Incorrect
c)
None of the above
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