Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): In male cockroaches, anal styles are a pair of jointed filamentous structures arising from the 10^ th tergum. Reason (R): Male cockroaches can be easily distinguished from female cockroaches by the presence of anal styles. In the light of the above statements, choose the most appropriate answer fro

Step-by-step solution

Assertion (A) is false because anal styles are short, thread-like, unjointed structures that arise from the 9^ th sternum in male cockroaches. The jointed filamentous structures arising from the 10^ th tergum in both sexes are called anal cerci. Reason (R) is true because anal styles are present only in male cockroaches and are absent in females, making them a primary morphological feature for distinguishing the sexes. Thus, Assertion (A) is false but Reason (R) is true. Answer: Assertion (A) is false but Reason (R