Given below are two statement: one is labelled as Assertion A and the other is labelled as Reason R:
Assertion A: Calyx, corolla, androecium and gynoecium are drawn in successive whorl in a floral diagram.
Reason R: In a floral diagram, the position of the mother axis with respect to the flower is represented by a dot in the centre of the floral diagram.
In the light of the above statements, choose the correct answer from the options given below:
A is true but R is false.
— Concept: This question tests your understanding of floral diagrams, specifically the arrangement of floral whorls and…Concept: This question tests your understanding of floral diagrams, specifically the arrangement of floral whorls and the representation of the mother axis.
Why (A) is correct:
Assertion A: Calyx, corolla, androecium, and gynoecium are indeed drawn in successive whorls in a floral diagram, starting from the outermost (calyx) to the innermost (gynoecium). This statement is true.
Reason R: In a floral diagram, the position of the mother axis is represented by a dot above the floral diagram, not in the centre. The centre of the floral diagram typically represents the gynoecium. Therefore, this statement is false.
Since Assertion A is true and Reason R is false, option A is the correct choice.
Why other options are wrong:
- (B) A is false but R is true: This is incorrect because A is true and R is false.
- (C) Both A and R are true and R is the correct explanation of A: This is incorrect because R is false.
- (D) Both A and R are true but R is NOT the correct explanation of A: This is incorrect because R is false.
Common Mistake: Students might confuse the position of the mother axis with the centre of the flower, which is usually occupied by the gynoecium.
NEET Tip / Mnemonic: Remember the order of floral whorls from outside to inside: Calyx, Corolla, Androecium, Gynoecium (CCAG).
Correct Answer: (A)
A is true but R is false.