Q174 / 200 · NEET 2023 (All India) · Zoology

Expressed Sequence Tags (ESTs) refers to 

  • A
    Certain important expressed genes.
  • Correct answer
    B
    All genes that are expressed as RNA.
  • C
    All genes that are expressed as proteins.
  • D
    All genes whether expressed or unexpressed.

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.

Hence, the correct answer is option: 'B'.

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