NEET · Biology · STD 11 - 3. Plant kingdom

Select the mismatch.

A Cycas-Dioecious
B Salvinia-Heterosporous
C Equisetum-Homosporous
D Pinus-Dioecious

Verified Solution

Answer & Solution

Correct Answer

(D) Pinus-Dioecious

Step-by-step Solution

Detailed explanation

(d) : Pinus is a monoecious plant, \(i.e.\), in Pinus the male and female cones or strobili are borne on the same plant.

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.

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Which of the following statements are true for spermatogenesis but do not hold true for Oogenesis? \((a)\) It results in the formation of haploid gametes \((b)\) Differentiation of gamete occurs after the completion of meiosis \((c)\) Meiosis occurs continuously in a mitotically dividing stem cell population \((d)\) It is controlled by the Luteinising hormone (LH) and FollicleStimulating Hormone (FSH) secreted by the anterior pituitary \((e)\) It is initiated at puberty Choose the most appropriate answer from the options given below:

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Match the following joints with the bones involved

\((a)\) Gliding joint	\((i)\) Between carpal and metacarpal of thumb
\((b)\) Hinge joint	\((ii)\) Between Atlas and Axis
\((c)\) Pivot joint	\((iii)\) Between the carpals
\((d)\) Saddle joint	\((iv)\) Between Humerus and Ulna.

Select the correct option from the following

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

List \(I\)	List \(II\)
\(A.\) Non-medicated \(IUD\)	\(I.\) Multiload \(375\)
\(B.\) Copper releasing \(IUD\)	\(II.\) Progestogens
\(C.\) Hormone releasing \(IUD\)	\(III.\) Lippes loop
\(D.\) Implants	\(IV.\) \(LNG-20\)

Choose the correct answer from the option given below:

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