Explain the mechanism of sex determination in insects like Drosophila and grasshopper.

Explanation

**Step-by-Step Solution:**

1. **Introduction to Sex Determination in Insects:**
- Insects exhibit various mechanisms of sex determination. Two common examples are Drosophila (fruit flies) and grasshoppers.

2. **Sex Determination in Drosophila:**
- Drosophila utilizes the XY sex-determination system.
- In this system, females possess two X chromosomes (XX), while males have one X and one Y chromosome (XY).
...