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NEET2023ZoologyMolecular Basis of InheritanceActual

Expressed Sequence Tags (ESTs) refers to

Options

  1. ACertain important expressed genes.
  2. BAll genes that are expressed as RNA.
  3. CAll genes that are expressed as proteins.
  4. DAll genes whether expressed or unexpressed.

Correct answer

B. All genes that are expressed as RNA.

Step-by-step solution

Expressed Sequence Tags (ESTs) are DNA sequences (genes) that are expressed as mRNA for protein synthesis. These are used in the human genome project for gene mapping. ESTs provide adequate knowledge to allow specific probes to be developed for DNA microarrays that can then be used to establish profiles of gene expression.

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