The diseases caused by defects that are present right from the birth are known as

Options

A. genetic diseases
B. hormonal diseases
C. nutrient deficiency diseases
D. congenital diseases

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the type of diseases that are present from birth.

2. **Identifying the Options**: The options provided are:
- Genetic diseases
- Hormonal diseases
- Nutrient deficiency diseases
- Congenital diseases

3. **Analyzing Each Option**:
- **Genetic Diseases**: These are caused by mutations in the genetic material and can be inherited from parents. They can manifest from birth but are not exclusively present at birth.
- **Hormonal Diseases**: These result from the imbalance of hormones, either due to excess or deficiency. They can develop at any stage of life and are not necessarily present from birth.
- **Nutrient Deficiency Diseases**: These are caused by a lack of essential nutrients and can occur at any time, not specifically from birth.
- **Congenital Diseases**: These are anatomical and physiological abnormalities that are present at birth. They include conditions like hemophilia, color blindness, and sickle cell anemia.

4. **Conclusion**: Based on the analysis, the correct answer is **Congenital diseases**, as they are specifically defined as diseases that are present from birth.

**Final Answer**: The diseases caused by defects that are present right from birth are known as **congenital diseases**.

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