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

Birth of genetics, REDISCOVERY OF MENDEL'S LAWS (THE BIRTH OF GENETICS) ...

REDISCOVERY OF MENDEL'S LAWS (THE BIRTH OF GENETICS) 1.         It was in 1900 that three botanist independently rediscovered the principles of heredity already worked out by M

Ethylene - apical dominance, Ethylene - Apical Dominance Ethylene also...

Ethylene - Apical Dominance Ethylene also plays a role in the inhibition of lateral bud growth. It is present in those tissues like shoot apex where auxins are also present. I

Clinical presentation and investigation of hypertension, Any elevation in B...

Any elevation in BP is accompanied by increased risk of cardiovascular and cerebrovascular events and renal damage. The most distinctive pathological consequence

First systematic theory in psychiatric nursing, First Systematic Theory in ...

First Systematic Theory in Psychiatric Nursing: Hildegard Peplau, one of the nurse-theorist, published a book on Interpersonal Relations  in Nursing (1952) and gave-the introd

What is the life cycle of trypanosoma cruzi, What is the life cycle of Tryp...

What is the life cycle of Trypanosoma cruzi? Trypanosoma cruzi is a heteroxenous parasite, i.e., it has an intermediate host, the triatomine bug, and an ultimate host, the hum

Pathology, Pathology: This concerned with the identification of different d...

Pathology: This concerned with the identification of different diseases, causative organs, their prevention and control methods. Pathology is a kind of study or diagnosis of diseas

What is autophagic intracellular digestion, What is autophagic intracellula...

What is autophagic intracellular digestion? Why is this type of intracellular digestion intensified in an organism undergoing starvation? Autophagic intracellular digestion is

How we can measure perimplant pd, How we can measure perimplant PD Peri...

How we can measure perimplant PD Perimplant PD should be measured routinely during maintenance appointment with a less probing force (0.2 to 0.3 N) as the tissue is more sensit

Hazards in biology laboratory, The major hazards encountered in the biologi...

The major hazards encountered in the biological lab work are diseases like infections and allergies which are caused by handling live animals. dissections, plant and animal tissues

Described microbiology of air, Q. Described Microbiology of Air? Ans. ...

Q. Described Microbiology of Air? Ans. You would realize that air, by nature, does not contain a natural flora of microorganisms. All that comes into air is by accident and i

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