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Question

This technique is commonly used to detect the chromosomal abnormality of an unborn baby:

A
Tissue culture
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B
Ultrasound
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C
CAT scanning
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D
Amniocentesis
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Solution

The correct option is D Amniocentesis
A medical test in which a needle is used to remove a small amount of the liquid(amniotic fluid) that surrounds a baby in the mother's womb to examine the baby's condition.
It is used to diagnose fetal defects like genetic disorders or chromosomal abnormalities usually in the early second trimester of pregnancy.

Tissue culture (TC) is the cultivation of plant cells, tissues, or organs on specially formulated nutrient media. Under the right conditions, an entire plant can be regenerated from a single cell.

An ultrasound is an imaging test that uses sound waves to create a picture (also known as a sonogram) of organs, tissues, and other structures inside the body. Unlike X-rays, ultrasounds don't use any ionizing radiation.

A computed tomography (CT) or computerized axial tomography (CAT) scan combines data from several X-rays to produce a detailed image of structures inside the body. A CT scan can be compared to looking at one slice of bread within a whole loaf.

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