Select the type of parthenogenesis in which diploid unfertilised eggs forms only females.

Options

A. Arrhenotoky
B. Thelytoky
C. Amphitoky
D. Epitoky

Answer

To solve the question regarding the type of parthenogenesis in which diploid unfertilized eggs form only females, we can follow these steps:

### Step 1: Understand the Concept of Parthenogenesis
Parthenogenesis is a form of asexual reproduction where an egg develops into an individual without fertilization. It can result in the production of males, females, or both, depending on the type of parthenogenesis.

**Hint:** Remember that parthenogenesis can lead to different outcomes based on the species and environmental conditions.

### Step 2: Identify the Types of Parthenogenesis
There are several types of parthenogenesis, including:
- **Arenotarchy:** Unfertilized eggs develop into males.
- **Teletalky:** Unfertilized diploid eggs develop into females.
- **Amphitalky:** The sex of the offspring can vary based on environmental factors.
- **Epitope:** Involves the development of sexually immature forms.

**Hint:** Focus on the definitions of each type to identify which one produces only females.

### Step 3: Analyze the Options
- **Arenotarchy:** Produces males from unfertilized eggs. Not the correct answer.
- **Teletalky:** Produces females from diploid unfertilized eggs. This matches the question.
- **Amphitalky:** The sex is determined by environmental factors. Not the correct answer.
- **Epitope:** Involves immature forms, not directly related to the question. Not the correct answer.

**Hint:** Eliminate options that do not fit the criteria of producing only females.

### Step 4: Conclusion
Based on the analysis, the correct type of parthenogenesis in which diploid unfertilized eggs form only females is **Teletalky**.

**Final Answer:** Teletalky