Which of the following statements about the pharynx and larynx is/are correct?
(1) The pharynx serves as a pathway for both food and air.
(2) The larynx is involved in the production of sound.
(3) The pharynx contains the vocal cords.
(4) The larynx prevents food from entering the trachea.
Choose the correct options from the given below:
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 :