Patient Education

What is Whole Exome Sequencing?

WES reads the protein-coding portion of all genes at once and is used when a single-gene condition is suspected.

The exome is roughly 1–2% of the genome but contains the majority of known disease-causing variants. Whole Exome Sequencing reads all of it in a single test.

It is typically ordered when the ultrasound shows features suggesting a single-gene disorder and the microarray is normal.

Points to understand before testing

  • Testing parents alongside the fetus (trio testing) greatly improves interpretation
  • Results may include variants of uncertain significance
  • A normal result does not exclude every genetic condition
  • Incidental findings unrelated to the pregnancy are possible and are discussed in advance

This page is general information and is not a substitute for a consultation. Every pregnancy is assessed individually.

Next Step

Bring your reports. We'll find the cause together.

Consultations at Apollo Cradle, Apollo Fertility, AIFMRG and Epic International, Hyderabad.