Nucliec Acid Structure
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In
which of the following uracil is present?
a. RNA
b. DNA
c. Both
(a) and (b)
d. None
of these
The
function of ribosomes within the cell is ____________.
a. to
produce ATP
b. to
ferment carbohydrates
c. to synthesize proteins
d. all
of these
The
DNA that actually codes for a protein's primary structure in eukaryotes is ____________.
a. the
entire gene
b. portions
of the gene called introns
c. portions of the gene called exons
d. the
promoter
Stem
and loop structures are ____________.
a. proteins
that help partially denatured enzymes to recover their native configuration
b. structures in DNA caused by inverted
repeats
c. structures
at the ends of linear eukaryotic DNA molecules
d. the
bonds between adjacent DNA nucleotides in the same strand
According
to base pairing rules the bases of one strand match-up with the bases of the
second strand of DNA and the two strands are said to be ____________.
a. complementary
b. oppositely
charged
c. identical
d. none
of these
To
which of the following adenine always binds?
a. Guanine
b. Cytosine
c. Thymine
d. None
of these
Guanine
always binds to ____________.
a. cytosine
b. guanine
c. thymine
d. none
of these
In
DNA sequencing, the primer ____________.
a. specifies
where the sequence ends
b. specifies where the sequence begins
c. both
(a) and (b)
d. generates
variety of different sized fragments
The
chromosome of almost all bacteria is in the shape of ____________.
a. an
open circle
b. helix
c. a closed circle
d. a
linear chromosome
RNA
that is complementary to a segment of another RNA molecule to which it will
bind is known as ____________.
a. missense
RNA
b. antisense RNA
c. nonsense
RNA
d. none
of these
Which
is not an essential part of a two-component phosphorelay system?
a. Response
regulator
b. Sensor
kinase
c. Autoinducer
d. None of these