Question

Haploid plant cultures can be obtained from.
A. Leaves
B. Root tip
C. Pollen grain
D. Bud

Answer 1

Haploid plant culture is a method by which haploid plants are produced in vitro. In seeding plants, a haploid plant culture can be obtained from the cells of the gametes produced on the anther or inside an ovary.

Complete answer:
Plant tissue culture is defined as the culturing of plant parts including seeds, organs, explants, tissues, cells, or protoplasts on a chemically defined synthetic media under a controlled environment of light, temperature and humidity.

Let us look at each option one by one.
- Option A: Leaves are diploid tissue and can therefore not be used for the production of haploid plant cultures. Hence, this option is incorrect.
- Option B: The root tip is a diploid plant tissue and cannot be used for the production of haploid cultures. Therefore, this option is incorrect.
- Option C: The pollen grain is the male gametophyte present on the tip of the anther and can be used to generate haploid plant cultures. Therefore, this option is correct.
- Option D: Buds producing flowers are diploid and thus, cannot be used for the generation of haploid plant cultures. Therefore, this option is incorrect.

Thus, the correct answer is (C) Pollen grains.

Note: The various advantages of plant tissue cultures are,
- They can be used to develop thousands of genetically identical plants from a single parent.
- It can be used to develop disease free plants.
- It can be used to develop a plant in a short amount of time.
- The process is not dependent on the weather or season as the plants are grown in vitro.