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Molecular Basis Of Inheritance

Question
CBSEENBI12047498

Consider the following statements about DNA replication.

I. A replisome is the largest functional unit in DNA replication factories.

II. RNA polymerase complexes are responsible for transcribing the newly synthesised RNAs into their mature form.

III. DNA polymerases add new deoxyribonucleotides to the 3' end of a DNA strand.

IV. A replication bubble is a region of single stranded DNA that arises due to unwinding of DNA in same direction by primase

Choose the incorrect statement(s)

  • I and II

  • III and IV

  • I, II and IV

  • I, II, III and IV

Solution

C.

I, II and IV

Out of all 4 statements; Statement 3 is correct. A replisome is the smallest functional unit in DNA replication factories. RNA polymerase complex is responsible for transcribing the newly synthesised DNA into mRNA. A replication bubble is a region of double stranded DNA that arises due to the unwinding of DNA in same direction by helicase.