NUCLEIC ACID STRUCTURE QUIZ

Guanine always binds to

thymine

none of these

guanine

cytosine

TRUE ANSWER : ?
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RNA that is complementary to a segment of another RNA molecule to which it will bind is known as

antisense RNA

missense RNA

nonsense RNA

none of these

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Stem and loop structures are

the bonds between adjacent DNA nucleotides in the same strand

structures in DNA caused by inverted repeats

proteins that help partially denatured enzymes to recover their native configuration

structures at the ends of linear eukaryotic DNA molecules

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The chromosome of almost all bacteria is in the shape of

a closed circle

a linear chromosome

helix

an open circle

TRUE ANSWER : ?
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The DNA that actually codes for a protein's primary structure in eukaryotes is

the entire gene

the promoter

portions of the gene called introns

portions of the gene called exons

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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

none of these

oppositely charged

complementary

identical

TRUE ANSWER : ?
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To which of the following adenine always binds?

None of these

Thymine

Cytosine

Guanine

TRUE ANSWER : ?
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In which of the following uracil is present?

DNA

RNA

None of these

Both (a) and (b)

TRUE ANSWER : ?
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Which is not an essential part of a two-component phosphorelay system?

None of these

Sensor kinase

Autoinducer

Response regulator

TRUE ANSWER : ?
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The function of ribosomes within the cell is

to synthesize proteins

all of these

to produce ATP

to ferment carbohydrates

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