Describe dna replication in details, Biology

Assignment Help:

Describe DNA replication in details?

Replication :  DNA replicates itself by first breaking the hydrogen bonds between the nitrogen base pairs, and "unzips" itself into two strands. A replication fork, a Y-shaped structure, moves down the strands as DNA unzips.

875_replication fork.png

Complementary nucleotides, which are floating free in the nucleus, form hydrogen bonds with each separated DNA strand at their matching nucleotide sites according to the base-pairing rule. In this way,

DNA replication is a semi-conservative process whereby each half of the original DNA strand builds a new complementary strand on itself. DNA polymerases catalyze the formation of sugar to phosphate bonds of the nucleotide monomers to complete the building of a new strand on the original strands.

Replication takes place at a very fast rate. In the bacterium E. coli, the complex makes DNA at over 1000 base pairs per second, and makes mistakes in the order of perhaps one base in a billion to one per trillion. In bacteria, there is just one point where replication begins, but in eukaryotes there are many specific origins for replication. Replication can proceed in both directions from an origin.


Related Discussions:- Describe dna replication in details

Explain about the soil morphology, Explain about the Soil morphology S...

Explain about the Soil morphology Soil morphology is the description of the soil body and its general characteristics. The morphology of the soil is expressed by number, kinds

What are the uses of national parks, Q. What are the uses of National parks...

Q. What are the uses of National parks ? National Park is an area dedicated to conserve environment, natural and historical objects and to conserve the wild life therein. Natio

Explain about the saccharin - artificial sweeteners, Explain about the sacc...

Explain about the saccharin - artificial sweeteners? The oldest artificial sweetener is saccharin (the calcium or sodium salt of 1, 2- benzisothiazol-3(2H)-one 1, 1-dioxide) as

Process of stabilize lipoprotein structure, Q. Process of stabilize lipopro...

Q. Process of stabilize lipoprotein structure? Ans. Apoproteins not only stabilize lipoprotein structure but also have other important regulatory functions in lipoprotein

Explain the composition of sabouraud agar - culture media, Explain the Comp...

Explain the Composition of Sabouraud Agar? Sabouraud agar is used for cultivation of yeasts and moulds. Peptone - 10.0 gm Dextrose - 40.0 gm Agar - 15.0 gm Distille

Describe cutaneous diffusion, Q. In arthropods why isn't gas exchange done ...

Q. In arthropods why isn't gas exchange done through cutaneous diffusion? In arthropods the impermeability of the exoskeleton makes the way of gases difficult. In addition the

Describe what happens during activation of the lac operon, Describe what ha...

Describe what happens during activation of the lac operon. Lactose binds to the repressor protein, which causes the repressor protein to be released from the operator site. Th

Explain Isolated soybean proteins, Explain ISP The specification of th...

Explain ISP The specification of the Association of American Feed Control Officials, Inc. (AAFCO) defines ISP as "Major proteinaceous fraction of soybeans prepared from dehulle

PHYLUM PROTOZOA, STATE THE ECONOMIC AND ECOLOGICAL IMPORTANCE OF ECHINODERM...

STATE THE ECONOMIC AND ECOLOGICAL IMPORTANCE OF ECHINODERMS

What are the cnidocytes, Q. What are the cnidocytes? What is the name of th...

Q. What are the cnidocytes? What is the name of the capsule inside the cnidocyte? What are the biological functions of this structure? Cnidocytes are specific cells present in

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