George palade observed granular structure under electron microscopy which is composed of

Options

A. RNA & DNA
B. RNA & Carbohydrates
C. RNA & Proteins
D. RNA & Amino acids

Answer

**Step-by-Step Solution:**

1. **Identify the Subject of the Question**: The question refers to the granular structure observed by George Palade under an electron microscope.

2. **Recall the Discovery**: George Palade is known for his work on ribosomes, which he observed in animal cells in 1955.

3. **Define the Structure**: The granular structure that Palade observed is identified as ribosomes.

4. **Composition of Ribosomes**: Ribosomes are composed of ribosomal RNA (rRNA) and ribosomal proteins. They consist of two subunits (large and small), each made up of rRNA and proteins.

5. **Historical Context**: The term "ribosome" was coined by Palade, and they are sometimes referred to as "Palade particles" in his honor.

6. **Conclusion**: Based on the information, the correct answer to the question is that the granular structure observed by George Palade is composed of ribosomal RNA and ribosomal proteins.

**Final Answer**: The granular structure observed by George Palade under electron microscopy is composed of ribosomal RNA and ribosomal proteins.

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