Assertion (A): 'Saheli' - a new barrier contraceptive for the females.
Reason (R): Saheli was developed by scientists at Central Drug Research Institute (CDRI) in Lucknow, India.
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → (A) is false but (R) is true.
Contraceptive methods work in different ways. Barrier methods (condoms, diaphragms, cervical caps, vaults) physically stop the sperms from meeting the ovum. Oral pills are taken by mouth.
Assertion (A): 'Saheli' - a new barrier contraceptive for the females. — False. Saheli is not a barrier. It is an oral contraceptive pill for females, taken once a week, with very few side effects.
Reason (R): Saheli was developed by scientists at Central Drug Research Institute (CDRI) in Lucknow, India. — True. Saheli was developed by scientists at the Central Drug Research Institute (CDRI), Lucknow, as part of research on new methods of birth control.
A is false and R is true.
Note: The CDRI fact sits in a small ‘Do you know?’ line. Small lines, big marks: read every one of them.
NCERT Extract:
Population Stabilisation and Birth Control – “… In barrier methods, ovum and sperms are prevented from physically meeting with the help of barriers. … Saheli –the new oral contraceptive for the females contains a non-steroidal preparation. It is a ‘once a week’ pill with very few side effects and high contraceptive value.”