Question

The initial development of male gametophyte from the pollen grain in angiosperms is ..............

• A. in vitro
• B. ex situ
• C. in situ
• D. ex partite

Hint:

In situ refers to a process that occurs naturally, in its original place, such as pollen development within the anther.

Answer 1

The Correct Option is C

Step 1: Understanding the development of male gametophyte.
In angiosperms, the male gametophyte (pollen grain) develops in situ, which means it develops within the anther, the male reproductive organ of the flower.
Step 2: Analyzing the options.
(A) in vitro: Incorrect, in vitro refers to development outside the organism, typically in a laboratory setting.
(B) ex situ: Incorrect, ex situ refers to development or conservation outside the natural habitat.
(C) in situ: Correct, the pollen grain develops within the anther, in situ, in angiosperms.
(D) ex partite: Incorrect, ex partite is not a term used for this process.
Step 3: Conclusion.
The correct answer is (C) in situ, as the male gametophyte develops within the anther of the angiosperm.