(a) What does various steps involved in the sexual reproduction in plants
(b) Name two plants which reproduce by sexual reproductin method and two plants which reproduce by asexual reproduction methods.

Answer

### Step-by-Step Solution:

#### (a) Steps Involved in Sexual Reproduction in Plants:

1. **Pollination**:
- The first step in sexual reproduction in plants is pollination, which is the transfer of pollen grains (containing male gametes) from the anther (male part) to the stigma (female part) of the flower.

2. **Fertilization**:
- After pollination, fertilization occurs. This involves the fusion of a male gamete (from the pollen) with an egg cell in the ovule, resulting in the formation of a zygote. Additionally, another male gamete fuses with the polar nuclei in the central cell of the embryo sac, forming the primary endosperm nucleus (PEN), which provides nourishment to the developing zygote.

3. **Development of the Embryo**:
- The zygote undergoes multiple divisions (mitosis) to develop into an embryo.

4. **Formation of Fruits and Seeds**:
- The ovary of the flower develops into a fruit, while the ovules develop into seeds. This encapsulates the new generation of plants.

#### (b) Examples of Plants:

1. **Plants that Reproduce by Sexual Reproduction**:
- Wheat (Triticum aestivum)
- Sunflower (Helianthus annuus)

2. **Plants that Reproduce by Asexual Reproduction**:
- Potato (Solanum tuberosum) - reproduces through tubers.
- Strawberry (Fragaria × ananassa) - reproduces through runners (stolons).