Expressed Sequence Tags (ESTs) refers to:
Genes expressed as RNA
Polypeptide expression
DNA polymorphism
Novel DNA sequence
DNA fingerprinting -
DNA fingerprinting is a very quick way to compare the DNA sequence of any two individuals.
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Expressed sequence tags are genes that are expressed as RNA. These are used to identifying all the genes of genome.
Genes expressed as RNA
Option 2)Polypeptide expression
Option 3)DNA polymorphism
Option 4)Novel DNA sequence