The ________ is a smaller spherical structure present inside the nucleus that plays a significant role in the synthesis of proteins

Options

A. nucleolus
B. cytoplasm
C. nucleoplasm
D. protoplasm

Answer

**Step-by-Step Solution:**

1. **Identify the Structure**: The question asks for a smaller spherical structure present inside the nucleus that is involved in protein synthesis.

2. **Consider the Options**: The options provided in the video include the nucleolus and cytoplasm. We need to focus on the one that is specifically located inside the nucleus.

3. **Function of the Nucleolus**: The nucleolus is a structure found within the nucleus. Its primary function is to synthesize ribosomes, which are essential for protein synthesis. Ribosomes are made up of proteins and ribosomal RNA (rRNA).

4. **Conclusion**: Since the nucleolus plays a significant role in the synthesis of proteins through the formation of ribosomes, it is the correct answer to fill in the blank.

5. **Final Answer**: The correct answer is "Nucleolus".

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