Wednesday 16 August 2017

tRNA and function

tRNA;
Transfer RNA
10 to 15℅ of total cellular RNA.
Molecular weight 25000 to 30000 Da.
It is made up of single strand polynucleotide chain.
Structure of tRNA
    Primary structure
It is a linear sequence of nucleotides.
60 to 90 nucleotides long but most commonly 76 nucleotides.
   Secondary structure
It was proposed by Robert Holli in 1968.
   Tertiary structure
It help in recognize of amino acey tRNA synthesis enzyme.
    

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Lipids

Lipids; It is saturated and unsaturated. Saturated; Milk, butter, coconut oil , phone oil. Unsaturated; Butter, margarine