Which of the following is incorrect for DNA polymerase?

(a)template dependent enzyme

(b)highly efficient enzyme

(c)high degree of accuracy

(d)template independent enzyme

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which of the following purposes are not served by Deoxyribonucleoside triphosphates

(a) act as substrate

(b)act as energy source for replication

(c)act as enzyme cofactors

(d)act same as ATP

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The small opening of the DNA helix where replication occurs is known as

(a)replication centre

(b)replication opening

(c)replication fork

(d)duplication fork

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The template of DNA on which discontinuous replication occurs has polarity

(a)5’to 3’

(b)3’ to 5’

(c)both a and b

(d)None of these

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The discontinuously synthesised fragments are joined later by

(a)DNA polymerase III

(b)DNA ligase

(c)DNA gyrase

(d)DNA polymerase I

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In eukaryotes, the replication of DNA takes place

(a) at S-phase of the cell cycle

(b)before G2 and after G1phase of the cell cycle

(c) at M phase

(d)Both a and b

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If cell division wouldn’t occur after DNA replication then cell will have

(a) chromosomal abberation

(b)polyploidy

(c)chromosomal anomaly

(d)Both b and c

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Which of the following statement is not true for origin of replication

(a) It’s a definite place where replication originates

(b) It should be present on vector DNA for making recombinant DNA

(c)It should be present in host in which vector DNA has to be transferred

(d)Both b and c

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Which principle govern the principle of transcription?

(a)Cleavage of phosphodiester bond

(b)Phosphorylation

(c)Complementarity

(d)duplication

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Which of the following statement is not true ?

(a)In replication the total DNA of an organism gets duplicated

(b)In transcription complete one strand of the DNA gets copied

(c) In transcription only a segment of only one strands of the DNA gets copied

(d)Both b and c

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