NEET · Biology · STD 11 - 5. Morphology flowering plants

The standard petal of a papilionaceous corolla is also called

A vexillum
B corona
C carina
D pappus

Verified Solution

Answer & Solution

Correct Answer

(A) vexillum

Step-by-step Solution

Detailed explanation

(a) : The posterior large bilobed petal of a papilionaceous corolla is called standard or vexillum. It overlaps the two smaller lateral petals known as wings or alae.

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

Among the following pairs of microbes, which pair has both the microbes that can be used as biofertilizers?

NEET 2019 Easy

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

List\(-I\)	List\(-II\)
\((a)\) Vaults	\((i)\) Entry of sperm through Cervix is blocked
\((b)\) \(IUDs\)	\((ii)\) Removal of Vas deferens
\((c)\) Vasectomy	\((iii)\) Phagocytosis of sperms within the Uterus
\((d)\) Tubectomy	\((iv)\) Removal of fallopian tube

Choose the correct answer from the options given below. \((a)- (b)- (c)- (d)\)

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