Fill in the blanks:
50S + 30S form______________ ribosome.

Explanation

To fill in the blank for the question "50S + 30S form __________ ribosome," we can follow these steps:

1. **Understand the Components**: Recognize that ribosomes are made up of two subunits: a larger subunit and a smaller subunit. In this case, we have a 50S subunit and a 30S subunit.

2. **Identify the Total Ribosome Size**: When the 50S and 30S subunits combine, they form a complete ribosome. The total size of the ribosome is determined by adding the sizes of the two subunits together.

3. **Calculate the Ribosome Size**:
- 50S (large subunit) + 30S (small subunit) = 80S ribosome.
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