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Standard XII
Biology
Question

Assertion :Amniocentesis is a process of foetal sex determination. Reason: Metabolic errors and other diseases can be diagnosed prenatally by this process.
  1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
  2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
  3. Assertion is correct but Reason is incorrect.
  4. Both Assertion and Reason are incorrect.

A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
C
Both Assertion and Reason are incorrect.
D
Assertion is correct but Reason is incorrect.
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Solution
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Amniocentesis is a test to diagnose fetal abnormalities. In the method, the amniotic fluid is obtained from the amniotic sac with the help of a needle under the guidance of ultrasound. This test is basically used to detect chromosomal abnormalities and metabolic disorders in the developing fetus. It can be used for fetal sex determination also. Thus the correct answer is option B.

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