Explain the transcription and the replication processes, Biology

Assignment Help:

What are similarities and differences among the transcription process and the replication processes?

A DNA polynucleotide chain serves as a template in replication (DNA duplication) as well as in transcription (RNA formation). In both processes the pairing of the two polynucleotide chains of the original DNA molecule is broken by the breaking of hydrogen bonds for the chains to be exposed as templates. The reaction is catalyzed by exact enzymes in transcription and in replication.

In replication the enzyme DNA polymerase catalyzes the formation of a new polynucleotide chain using free nucleotides in solution and putting them in the new chain according to the DNA template exposed and to the rule A-T, C-G. In transcription the enzyme RNA polymerase makes a new polynucletide chain according to the DNA template exposed obeying, though, the rule A-U, C-G.

In replication the original template DNA chain is kept bound by hydrogen bonds to the newly produced DNA chain and a new DNA molecule is then formed. In transcription the association among the template DNA chain and the newly formed RNA is undone and RNA constituted of only one polynucleotide chain is liberated.

 


Related Discussions:- Explain the transcription and the replication processes

Name the final stage of cell division, During final stage of cell division,...

During final stage of cell division, mitotic apparatus disappears, chromosomes become attenuated, centrioles duplicate and split, nuclear membrane becomes reconstituted and nucleol

Explain imiquimod, Imiquimod (Aldara) This immunomodulator is FDA-appro...

Imiquimod (Aldara) This immunomodulator is FDA-approved for topical treatment of external and perianal genital warts, which are caused by papillomavirus. Gradual clearance of w

Fluids requirement during congestive cardiac failure, Q. Fluids requirement...

Q. Fluids requirement during congestive cardiac failure? Fluids: Fluid intake should be monitored in accordance with urine output and severity of oedema. Fluid restriction is

State about kidney, Which of the following is true for the kidney? A. A...

Which of the following is true for the kidney? A. Aquaporin1 (AQP1) channels are located in both luminal and basolateral membranes of epithelial cells in the descending limb of

State the transmission of visual sensation, State the Transmission of Visua...

State the Transmission of Visual Sensation This process takes place in the visual pathway from the retina to the visual cortex. 'The impulse originating in the retina travels a

Can pathophysiology causes cardiovascular disease, Q. Can Pathophysiology c...

Q. Can Pathophysiology causes cardiovascular disease? Cigarette use activates platelets, increases circulating fibrinogen, increases heart rate, and elevates blood pressure. It

Does the dna replication occur in the cell division, Q. Does the DNA replic...

Q. Does the DNA replication occur in the cell division? Yes. The DNA replication occurs in mitosis as well in the meiosis.

Define radiological anatomy, Q. Define Radiological anatomy? The border...

Q. Define Radiological anatomy? The borders of the mediastinum on the CXR are defined by the contrast produced by adjacent air filled lung. Postero-Anterior View It in

Logical order in which molecules-atoms are associated, Q What is the logica...

Q What is the logical order in which the concepts of molecules, atoms, cells... up to biosphere are associated? Atoms form molecules that form cells that form tissues that form

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd