Question

In the branched uterus of a gravid there may be large number of shelled zygotes. Their number is approximately

• A. 300
• B. 3000
• C. 30,000
• D. 30,00,000

Answer 1

The correct option is D 30,00,000

In T.saginata the strobila is composed of a chain of ribbon-like segments called as proglottids. There are more than 700 proglottids in the strobila, but less than 1000 (~900), while T.saginata in comparison have more than 1000 proglottids. The proglottids are distinguishable into mature and gravid proglottids. Each mature proglottid contains a complete set of both male and female reproductive systems; hence it is hermaphrodite. Similar to T.saginata the uterus has 13 lateral branches in T.asiatica. The gravid proglottids are full of fertilised eggs. The number of eggs in gravid proglottids differs from 44,180 to 132,500, with an average number of 90,051.

Hence, the correct answer is option D.