Friday, May 30, 2014

Comparison between DNA, mRNA, rRNA and tRNA


Comparison between DNA, mRNA, rRNA and tRNA





Name
DNA
mRNA
rRNA
tRNA
Number of strands
Double stranded
Single stranded
Single stranded
Single stranded
Location
Mainly in nucleus, also in mitochondria and chloroplasts
In nucleus and cytoplasm (mainly ribosomes)
Only in ribosomes
In the cytoplasm
Functions
Acts as store of coded instructions for the synthesis of proteins required by the cell.
It is made on the DNA template. It carries coded instructions (codons) from nucleus to ribosomes for the synthesis of proteins.
Forms part of ribosome structure. Helps in locating mRNA correctly on ribosome surface.
Acts as amino acid carriers during translation (protein synthesis)


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