Which of the following technique will help the counsellor to detect chromosomal abnormality?

Amniocentesis

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Centrifugation

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Spectrophotometer

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All of the above

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Solution

The correct option is B Amniocentesis
Our bodies are made up of billions of cells, and in each cell there are 23 pairs of chromosomes. Chromosomes carry genes. Extra or missing chromosomes may cause abnormalities that can affect foetal development. Chorionic Villus Sampling (CVS) and Amniocentesis are the tests used by genetic counsellors that can confirm whether the foetus has a chromosome abnormality. This involve sampling of the placenta (CVS) or amniotic fluid (amniocentesis).
So, the correct answer is 'Amniocentesis'

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