The part of the embryosac which help in guiding the pollen tube towards it is m……. ( P) ….....and it is through……..(Q) ……….

Options

A. P is antipodal cells and Q is thigmotaxis
B. P is egg and Q is chemotaxis
C. P is a secondary nucleus and Q is thigmotaxis
D. P is synergids and Q is chemotaxis

Answer

To solve the question, we need to identify the parts of the embryo sac involved in guiding the pollen tube and the mechanism through which this guidance occurs.

### Step-by-Step Solution:

1. **Identify the Part of the Embryo Sac**:
- The part of the embryo sac that helps in guiding the pollen tube is known as the **synergids**. These are specialized cells located near the egg cell within the embryo sac.

2. **Mechanism of Guidance**:
- The guidance of the pollen tube towards the egg cell occurs through a process called **chemotaxis**. This is a biological phenomenon where cells move in response to chemical stimuli.

3. **Final Answer**:
- Therefore, the complete answer to the question is:
- (P) **synergids**
- (Q) **chemotaxis**