NEET · Biology · STD 12 - 3. reproductive health

One of the following is not a method of contraception. Which one?

A Condoms
B Pills of a combination of oxytocin and vasopressin
C Lippes loop
D Tubectomy

Verified Solution

Answer & Solution

Correct Answer

(B) Pills of a combination of oxytocin and vasopressin

Step-by-step Solution

Detailed explanation

(b) : Oxytocin is a birth hormone and vasopressin (antidiuretic hormone) reabsorbs water from the renal tubules to conserve water in the body. They have no role in contraception.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

Same subject

Which of the following is the most important causes for animals and plants being driven to extinction?

NEET 2019 Easy

Match List \(I\) with List \(II\) :

List \(I\)	List \(II\)
\(A.\) Fibrous joints	\(I.\) Adjacent vertebrae, limited movement
\(B.\) Cartilaginous joints	\(II.\) Humerus and Pectoral girdle, rotational movement
\(C.\) Hinge joints	\(III.\) Skull, don't allow any movement
\(D.\) Ball and socket joints	\(IV.\) Knee, help in locomotion

Choose the correct answer from the options given below :

NEET 2024 Medium

Match List I with List II :

List I (Phase of cell cycle)	List II (Activity)
A. \(G_1\) phase	I. Actual cell division occurs
B. S phase	II. Cell is metabolically active and continuously grows but does not replicate its DNA
C. \(G_2\) phase	III. Synthesis of DNA occurs and the amount of DNA per cell doubles
D. M phase	IV. Proteins are synthesized while cell growth continues

NEET 2026 Hard

Explore more questions on app

From NEET

Explore more questions on app