NUCLEIC ACID STRUCTURE QUIZ

The DNA that actually codes for a protein's primary structure in eukaryotes is

portions of the gene called introns

the entire gene

the promoter

portions of the gene called exons

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

Response regulator

None of these

Sensor kinase

Autoinducer

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Stem and loop structures are

structures in DNA caused by inverted repeats

the bonds between adjacent DNA nucleotides in the same strand

structures at the ends of linear eukaryotic DNA molecules

proteins that help partially denatured enzymes to recover their native configuration

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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

complementary

identical

oppositely charged

none of these

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The chromosome of almost all bacteria is in the shape of

an open circle

a linear chromosome

helix

a closed circle

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In DNA sequencing, the primer

specifies where the sequence ends

specifies where the sequence begins

both (a) and (b)

generates variety of different sized fragments

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The function of ribosomes within the cell is

to synthesize proteins

all of these

to ferment carbohydrates

to produce ATP

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

missense RNA

antisense RNA

none of these

nonsense RNA

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Guanine always binds to

thymine

cytosine

none of these

guanine

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To which of the following adenine always binds?

Guanine

Cytosine

Thymine

None of these

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