41.The changing of a business letter from shorthand to typewritten copy is analogous to
a.translation of mRNA.
b.transcription of DNA.
c.protein synthesis.
d.deciphering the genetic code.
e.replication of DNA.
42.Transcription of RNA takes place in the
a.mitochondria.
b.cytoplasm.
c.ribosomes.
d.nucleus.
e.endoplasmic reticulum.
43.The nitrogenous base found in DNA but not in RNA is
a.adenine.
b.cytosine.
c.guanine.
d.uracil.
e.thymine.
44.Which substance is found in RNA but not in DNA?
a.thymine
b.deoxyribose
c.ribose
d.guanine
e.cytosine
45.The nitrogenous base found in RNA but not in DNA is
a.adenine.
b.cytosine.
c.guanine.
d.uracil.
e.thymine.
46.DNA and RNA are alike in
a.the pentose sugar.
b.all the nitrogenous bases used to assemble the genetic code.
c.the number of strands.
d.their function in genetics.
e.none of these.
47.Uracil can pair with
a.ribose.
b.adenine.
c.cytosine.
d.thymine.
e.guanine.
48.The synthesis of an RNA molecule from a DNA template strand is called
a.replication.
b.translation.
c.transcription.
d.DNA synthesis.
e.metabolism.
49.The relationship between strands of RNA and DNA is
a.antagonistic.
b.opposite.
c.complementary.
d.an exact duplicate.
e.unrelated.
50.Transcription
a.occurs on the surface of the ribosome.
b.is the final process in the assembly of a protein.
c.occurs during the synthesis of any type of RNA from a DNA template.
d.is catalyzed by DNA polymerase.
e.is the formation of a new DNA strand.
