NUCLEIC ACID STRUCTURE QUIZ

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

the promoter

portions of the gene called exons

portions of the gene called introns

the entire gene

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Guanine always binds to

cytosine

thymine

none of these

guanine

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

Response regulator

Autoinducer

None of these

Sensor kinase

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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

oppositely charged

identical

complementary

none of these

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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

none of these

nonsense RNA

antisense RNA

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The chromosome of almost all bacteria is in the shape of

a linear chromosome

helix

a closed circle

an open circle

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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

proteins that help partially denatured enzymes to recover their native configuration

structures at the ends of linear eukaryotic DNA molecules

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In which of the following uracil is present?

Both (a) and (b)

RNA

None of these

DNA

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In DNA sequencing, the primer

specifies where the sequence ends

specifies where the sequence begins

generates variety of different sized fragments

both (a) and (b)

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The function of ribosomes within the cell is

to synthesize proteins

to ferment carbohydrates

to produce ATP

all of these

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