Select the correct statements :
(A) Platyhelminthes are triploblastic pseudocoelomate and bilaterally symmetrical organisms.
(B) Ctenophores reproduce only sexually and fertilization is external.
(C) In tapeworm, fertilization is internal but sexes are not separate.
(D) Ctenophores are exclusively marine, diploblastic and bioluminescent organisms.
(E) In sponges, fertilization is external and development is direct.
Choose the correct answer from the options given below :
Match List-I with List-II.
| List - I | List - II | ||
|---|---|---|---|
| (A) | Gene therapy | (I) | Separation of DNA fragments |
| (B) | RNA interference | (II) | Diagnostic test for AIDS |
| (C) | ELISA | (III) | Cellular defence |
| (D) | Gel Electrophoresis | (IV) | Allows correction of a gene defect. |
Choose the correct answer from the options given below :
Which of the following statements are correct with respect of Golgi apparatus ?
(A) It is the important site of formation of glycoprotein and glycolipids.
(B) It produces cellular energy in the form of ATP.
(C) It modifies the protein synthesized by ribosomes on ER.
(D) It facilitates the transport of ions.
(E) It provides mechanical support.
Choose the most appropriate answer from the options given below :
Given below are two statements :
Statement I : In cockroach, the forewings are transparent and prothoracic in origin.
Statement II : In cockroach, the hind wings are opaque, leathery and mesothoracic in origin.
In the light of the above statements, choose the correct answer from the options given below :