When pollen tube enters through micropyle, it is called:

Options

A. Chalazogamy
B. Mesogamy
C. Porogamy
D. Pseudoamy.

Answer

To solve the question "When pollen tube enters through micropyle, it is called:", we can follow these steps:

### Step 1: Understand the Components
- Identify the key terms in the question: "pollen tube," "micropyle," and "enters."
- The pollen tube is a structure that forms after pollen grains germinate and is responsible for delivering male gametes to the ovule.

### Step 2: Define Micropyle
- The micropyle is a small opening in the ovule of a seed plant through which the pollen tube enters to reach the egg cell for fertilization.

### Step 3: Identify the Process
- The process of the pollen tube entering the ovule through the micropyle is a specific term in plant reproduction.
- This process is essential for the fertilization of the ovule by the male gametes.

### Step 4: Recall the Correct Term
- The term that describes the entry of the pollen tube through the micropyle is "porogamy."
- Porogamy specifically refers to the method of fertilization where the pollen tube penetrates the ovule through the micropyle.

### Step 5: Final Answer
- Therefore, the answer to the question is: **Porogamy**.

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