Study of formation, growth and development of new individual from an egg is

Options

A. Cytology
B. Embryology
C. Histology
D. Genetics

Answer

To solve the question, "Study of formation, growth and development of new individual from an egg is," we will analyze the provided options step by step.

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for the study that focuses on the formation, growth, and development of a new individual starting from an egg (ovum).

2. **Evaluate the Options**:
- **Option A: Cytology**: This is the study of cells. Since the question is about the development of an individual from an egg, this option is not relevant.
- **Option B: Embryology**: This is the branch of biology that specifically deals with the development of an embryo from the fertilization of the egg (ovum) to the fetus stage. This option directly relates to the question.
- **Option C: Histology**: This is the study of tissues. While tissues are important in the development of an organism, this option does not specifically address the formation and growth from an egg.
- **Option D: Genetics**: This is the study of genes, heredity, and genetic variations. Although genetics plays a role in development, it does not specifically cover the process of development from an egg.

3. **Identify the Correct Answer**: Based on the analysis, the correct answer is **Embryology**. This field specifically studies the processes involved in the formation, growth, and development of a new individual from an egg.

### Final Answer:
The study of formation, growth, and development of a new individual from an egg is known as **Embryology**.

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