Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions



This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
DNA replicates in the following way:
1.Activation of Deoxyribonucleotides: They occur freely in the nucleoplasm.They are of four types-deAMP,deGMP,deCMP and deTMP.
2.Exposure of DNA strands:Enzyme helicase acts and opens the two strands of DNA . The whole strands however does not opens at one stretch  but the point of separation proceeds slowly towards the direction hence giving it a Y-shaped structure called replication fork.
3.RNA Primer: It is essential for the formation of new DNA chains. 
4.DNA Polymerases: Prokaryotes have three major types of DNA synthesizing enzymes  called DNA Polymerases III, II and I. All of them add nucleotides in 5'-->3' direction on 3-->5 strand. 
5.Base Pairing: The two separated DNA strands in the replication fork function as templates. Deoxyriboribonucleoside triphosphates come to lie opposite the nitrogen bases of exposed DNA templates. 
6.Chain Formation: It requires DNA Polymerase III in prokaryotes and Polymerase
δ/ε in eukaryotes.
7.Proof Reading and DNA repair: A wrong base is sometimes introduced during replication. The frequency is one in ten thousand. DNA Polymerase III is able to sense the same. It goes back, removes the wrong base, allows addition to proper base and proceeds forward.

0 0 0
 Deoxyribonuclicacid is present in nucleus in chromosomes
0 0 0
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts