Which among the following statements about the process of fertilisation is correct?

Options

A. Fertilisation always occurs inside the body of an organism
B. Fertilisation also occurs during asexual reproduction
C. Fertilisation does not occur in plants
D. Fertilisation involves fusion of male and female gametes

Explanation

To determine which statement about the process of fertilization is correct, let's analyze each option step by step:

1. **Option A: Fertilization always occurs inside the body of an organism.**
- This statement is not universally true. While many animals (like mammals) do have internal fertilization, other organisms (like many fish and amphibians) can have external fertilization, where fertilization occurs outside the body.

2. **Option B: Fertilization occurs during asexual reproduction.**
- This statement is incorrect. Asexual reproduction does not involve the fusion of gametes; it involves a single organism reproducing without the need for fertilization.

3. **Option C: Fertilization does not occur in plants.**
- This statement is also incorrect. Fertilization does occur in plants. In flowering plants, for example, fertilization happens when pollen (male gamete) fuses with the ovule (female gamete).

4. **Option D: Fertilization involves fusion of male and female gametes.**
- This statement is correct. Fertilization is defined as the process where male and female gametes fuse to form a zygote.

Based on this analysis, the correct answer is **Option D: Fertilization involves fusion of male and female gametes.**