NEET2026BiologyChapterActual
Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R): Assertion (A): A typical angiosperm anther is a four-sided (tetragonal) structure. Reason (R): The anther consists of four microsporangia located at the corners, two in each lobe. In the light of the above statements, choose the correct answer from the options given below:
Options
- ABoth (A) and (R) are true but (R) is NOT the correct explanation of (A).
- B(A) is true but (R) is false.
- CBoth (A) and (R) are true and (R) is the correct explanation of (A).
- D(A) is false but (R) is true.
Correct answer
C. Both (A) and (R) are true and (R) is the correct explanation of (A).
Step-by-step solution
A typical angiosperm anther is bilobed with each lobe having two theca, making it dithecous. The anther is a four-sided (tetragonal) structure because it consists of four microsporangia located at the corners, two in each lobe. The microsporangia develop further and become pollen sacs. Since the four-sided structure is a direct consequence of the presence of four microsporangia at the corners, both Assertion (A) and Reason (R) are true, and Reason (R) is the correct explanation of Assertion (A). Answer: Both (A) an