List I | List II | ||
A | Pleurobrachia | I | Mollusca |
B | Radula | II | Ctenophora |
C | Stomochord | III | Osteichthyes |
D | Air bladder | IV | Hemichordata |
List I | List II | ||
---|---|---|---|
A | Unicellular glandular epithelium | I | Salivary glands |
B | Compound epithelium | II | Pancreas |
C | Multicellular glandular epithelium | III | Goblet cells of alimentary canal |
D | Endocrine glandular epithelium | IV | Moist surface of buccal cavity |
The following diagram shown restriction sites in E. coli cloning vector pBR322. Find the role of ‘X’ and ‘Y’gens :