Zoology - Structural Organisation in Animals Question with Solution | TestHub

The correct answer is option (4) as A. Collateral gland Present in female cockroaches It is a pair of gland that secrete the hard egg case or ootheca B. Mushroom gland Absent in female cockroaches Present in males in the $6^{\text{th }}$ to $7^{\text{th }}$ abdominal segments C. Spermatheca Present in female cockroaches in the $6^{\text{th }}$ abdominal segment D. Anal style Absent in female cockroaches Present in males and project backwardly from $9^{\text{th }}$ sternum E. Phallic gland Absent in female cockroaches Present in males as a large club shaped gland located below the ejaculatory duct and reaches anteriorly up to the $5^{\text{th }}$ abdominal segment. Thus, only structures represented by 'A' and ' C ' are present in female cockroaches. Whereas, structures indicated by ' $B$ ', ' $D$ ' and ' $E$ ' are present in males. Options (1) and (2) are incorrect as these structures are present in males. Option (3) is incorrect as it represents only a single structure which is present in female cockroaches.