The thymus secretes the ...... hormone called ….... Which play a major role in the differentiation of ……... lymphocytes.

Options

A. Gylcoproteinaceous , thymosin ,T
B. Steroid , thymosin , T
C. Peptide , thymosin T
D. Peptide , thymosin , B

Answer

To answer the question, we need to fill in the blanks regarding the thymus gland's functions and the hormones it secretes.

1. **Identify the hormone secreted by the thymus**: The thymus gland is known for secreting hormones that are crucial for the immune system, particularly for the development of T lymphocytes. The specific hormone we are looking for is called **thymosins**.

2. **Determine the type of hormone**: Thymosins are classified as **peptide hormones**. This is important because it distinguishes them from other types of hormones like steroid hormones.

3. **Identify the type of lymphocytes affected**: The primary role of thymosins is in the differentiation of **T lymphocytes**. These are a type of white blood cell that plays a central role in the immune response.

Putting it all together, the complete statement is:
"The thymus secretes the **peptide** hormone called **thymosins**, which play a major role in the differentiation of **T** lymphocytes."