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

Stereoisomers , Glyceraldehyde has a one asymmetric carbon atom the central...

Glyceraldehyde has a one asymmetric carbon atom the central one and so two stereoisomers  which is also known as optical isomers are possible, which is two forms of glyceraldehyde,

Cell Help?, What is the mRNA sequence to this DNA sequence : Guanine, cyto...

What is the mRNA sequence to this DNA sequence : Guanine, cytosine, adenine, adenine, thymine, guanine

Define overall positive health effect of carbohydrate, Define Overall posit...

Define Overall positive health Effect of Carbohydrate? Non-glyceinic carbohydrates including non-starch polysaccharides are beneficial for the functions and physiology of gastr

What is the impaired healing, Impaired Healing and Infection Because of Imp...

Impaired Healing and Infection Because of Improper Flap Design The oral field in itself is a contaminated area due to the presence of the normal oral microflora. Improper flap

Arthropod classes characterized by number of limbs, Q. How are the three ma...

Q. How are the three major arthropod classes characterized according to the number of limbs? Most crustaceans have five pairs of limbs. Arachnids present four pairs and Insects

Define objectives to know about methods of food processing, Define Objectiv...

Define Objectives to know about methods of food processing? After studying this unit, you will be able to: Enumerate the different methods of food processing Enlist

Explain syphillis, Syphillis  Parenteral penicillin G remains the drug ...

Syphillis  Parenteral penicillin G remains the drug of choice for treating all stages of syphilis. Primary, secondary or latent syphilis known to be of less than one year's dur

External ear, EXTERNA L EAR - It is an oval shaped, some what funne...

EXTERNA L EAR - It is an oval shaped, some what funnel like, skin covered flap of elastic cartilage and muscles. It's outer stiff ridge is called hellix. Lower flexibl

Name three major groups into which mammals are divided, What are the three ...

What are the three major groups into which mammals are divided? The three groups into which mammals are divided are: monotremes (or prototherian, e.g., platypus), marsupials (o

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