DNA STRUCTURE AND REPLICATION QUIZ

One hypothesis of DNA replication suggested that the parental DNA molecules are broken into fragments. Both strands of DNA in each of the daughter molecules are made up of an assortment of parental and new DNA. This statement refers to which hypothesis?

Semi-conservative theory

Conservative theory

Dispersive theory

Evolutionary theory

TRUE ANSWER : ?
YOUR ANSWER : ?

Which will require a higher temperature to denature?

RNA with a high A-T content

DNA with a high G-C content

DNA with a high A-T content

RNA with a high G-C content

TRUE ANSWER : ?
YOUR ANSWER : ?

In DNA double helix, the two DNA chains are held together by

covalent bonds between the pair of bases

ionic bonds between the pair of bases

None of these

hydrogen bonds between the pair of bases

TRUE ANSWER : ?
YOUR ANSWER : ?

In DNA replication, one new strand is synthesized complementary to an old (parent) strand and is referred as

discontinuous

antiparallel

mutational

semiconservative

TRUE ANSWER : ?
YOUR ANSWER : ?

Which polymerase is active in DNA repairing

Polymerase II

Polymerase I

Polymerase III

none of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following would not contain DNA?

Mold

Yeast

Glass crystals

Bacteria

TRUE ANSWER : ?
YOUR ANSWER : ?

The chromosomal DNA complexes with

three types of histone as H1, H2A and H4

five types of histone as H1, H2A, H2B, H3 and H4

two types of histone as H1 and H4

four types of histone as H1, H2A, H3 and H4

TRUE ANSWER : ?
YOUR ANSWER : ?

The site on a bacterial chromosome that marks the initiation point for chromosome replication is called

an initiation codon

Ori

a promoter

Pro

TRUE ANSWER : ?
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Okazaki fragments occur during

polymerase reaction

replication

synthesis

transformation

TRUE ANSWER : ?
YOUR ANSWER : ?

In DNA, guanine pairs with

Uracil

Cytosine

Thymine

Adenine

TRUE ANSWER : ?
YOUR ANSWER : ?

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