Nucleic acids, Biology

Assignment Help:

Deoxyribonucleic Acid (DNA) - polymer of nucleotides containing genetic information that codes for proteins
Nucleotide - a monomer of DNA consisting of a ribose/deoxyribose sugar, a phosphate group and one of four possible bases

  • There are two types
    • DNA (ribose sugar that is missing an O on C-2)
    • RNA
  • Nitrogenous Bases
    • Purines (double rings)

                         Adenine

                         Guanine

            o   Pyramidines

                       Cytosine

                       Thymine (only in DNA)

                       Uracil (only in RNA)

  • A chain of nucleotides is called a strand
  • The bond between phosphate group on one nucleotide and the hydroxyl group of another
    • Phosphodiester bond è condensation reaction
  • RNA coils into a single helix strand
  • DNA coils into a double helical strand
  • Strict base pairing
    • C-G with 3 H-bonds
    • A-T with 2 H-bonds
    • Purine - pyramidine
  • DNA
    • Strands are anti-parallel
    • Each strand ends with a sugar on one end and a phosphate group on the other

 

  • Other nucleotides
    • ATP - Adenosine triphosphate
    • FAD - flavin adenine dinucleotide
    • NAD+ - nicoamide adenine dinucleotide
    • NADP, FADP
    • CAMP - cyclic adenosine monophosphate

 

  • Can form hybrid DNA with closely related organisms

 

 

1182_Nucleic Acids.png


Related Discussions:- Nucleic acids

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

What is lipid-lowering trial, Q. What is Lipid-lowering Trial? Aggressi...

Q. What is Lipid-lowering Trial? Aggressive lipid-lowering drug treatment of persons at various risk levels reduces Coronary Artery Disease morbidity and mortality rates and in

What are the lateral lines of fishes, What are the lateral lines of fishes?...

What are the lateral lines of fishes? The lateral lines of bony fishes are sense organs that extend along both sides of the animal body. They make contact with the environment

Endocrine glands, Endocrine glands Endocrine glands have no ducts - ...

Endocrine glands Endocrine glands have no ducts - so these are also called as ductless glands Eg.Pituitary etc., These glands secrete chemical substances called HORMONES

Inverse pcr, Inverse PCR is the variation of PCR which makes the amplifica...

Inverse PCR is the variation of PCR which makes the amplification of DNA segments of unknown sequence that flank DNA segments of the known sequence possible; in short, total DNA i

Define efficiency - terminologies used in chromatography, Define Efficiency...

Define Efficiency - terminologies used in chromatography? Efficiency in chromatography is expressed as number of theoretical plates.           H =   L/N Where, H is heigh

What are the main human diseases caused by prions, Q. What are the main hum...

Q. What are the main human diseases caused by prions? The major known human diseases of such type are the Creutzfeldt-Jacob disease (CJD), the kuru and the Gerstmann-Sträussle-

Principles governing cleavage, Principles Governing Cleavage a) The n...

Principles Governing Cleavage a) The nucleus and mitotic achromatic figure tend to occupy the centre of active cytoplasmic density of the dividing cells, e.g., in isolecithal

Explain the cardiovascular type of infantile beriberi, Explain The cardiova...

Explain The cardiovascular type of infantile beriberi? It manifests itself in babies between the ages of 2 and 4 months. The onset is acute with classical signs and symptoms of

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