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

Adaptations, Adaptations Every organism can live and reproduce within a...

Adaptations Every organism can live and reproduce within a certain range of climatic conditions. Organisms that live in hot or cold environments have behavioural and physiologi

Animal Cells, what are the functions of cytoplasm ?

what are the functions of cytoplasm ?

Determine the fructose to glucose ratio in honey, Q. Determine the fructose...

Q. Determine the fructose to glucose ratio in honey? This activity will help you to: • check the given samples of honey for any adulteration with commercial sugar

What do you understand by hiatus hernia, Q. What do you understand by Hiatu...

Q. What do you understand by Hiatus Hernia? Several long/short term complications may arise due to GERD which may in turn increase the frequency or severity of this disease. On

What best describes the amoebas division, What best describes the amoebas d...

What best describes the amoebas division?  (1) It is a Mode of asexual account in which a one parent is involved. The amoeba cell, which is unicellular, separates into two daug

What is haemoglobin, Q. What is haemoglobin? What is the inorganic element ...

Q. What is haemoglobin? What is the inorganic element that is basic of the composition of haemoglobin? Haemoglobin is the protein present in the blood responsible for the trans

Excretory system, types of excretory system of lower animals

types of excretory system of lower animals

Explain the feeding 6-12 months infant, Explain the Feeding 6-12 Months Inf...

Explain the Feeding 6-12 Months Infant? As the infant grows older, mother's milk alone is not sufficient to meet his increasing needs. This could be seen in few infants between

What are dendritic cells, Dendritic Cells a. Are the same as macrophages b....

Dendritic Cells a. Are the same as macrophages b. Bind and digest pathogen proteins c. Secrete immunoglobulin d. All of the above

What the ph of a solution of 1 m hcl, The pH of a solution of 1 M HCl is: ...

The pH of a solution of 1 M HCl is: Select one: a. 0 b. 0.1 c. 1 d. 10 e. negative 1

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