NUCLEIC ACID STRUCTURE QUIZ

Guanine always binds to

thymine

cytosine

none of these

guanine

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Sensor kinase

Response regulator

None of these

Autoinducer

TRUE ANSWER : ?
YOUR ANSWER : ?

The chromosome of almost all bacteria is in the shape of

a closed circle

helix

an open circle

a linear chromosome

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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

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

missense RNA

nonsense RNA

none of these

antisense RNA

TRUE ANSWER : ?
YOUR ANSWER : ?

To which of the following adenine always binds?

Cytosine

Guanine

None of these

Thymine

TRUE ANSWER : ?
YOUR ANSWER : ?

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

identical

oppositely charged

none of these

complementary

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

the promoter

the entire gene

portions of the gene called exons

portions of the gene called introns

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The function of ribosomes within the cell is

all of these

to ferment carbohydrates

to produce ATP

to synthesize proteins

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In which of the following uracil is present?

RNA

Both (a) and (b)

None of these

DNA

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