A complex of ribosomes attached to a single strand of mRNA is known as

Options

A. Okazaki fragment
B. Polymer
C. Polyribosome
D. Polypeptide

Answer

To solve the question "A complex of ribosomes attached to a single strand of mRNA is known as", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the components involved**:
- The question mentions ribosomes and mRNA. Ribosomes are the cellular machinery responsible for protein synthesis, and mRNA (messenger RNA) carries the genetic information from DNA to the ribosomes.

2. **Identify the relationship**:
- When multiple ribosomes attach to a single strand of mRNA, they work simultaneously to translate the mRNA into a protein. This structure allows for the efficient synthesis of proteins.

3. **Consider the options given**:
- The options provided are:
- A) Okazaki Fragment
- B) Polymer
- C) Polyribosome
- D) Polypeptide

4. **Analyze each option**:
- **Okazaki Fragment**: These are short sequences of DNA synthesized on the lagging strand during DNA replication. This option is incorrect.
- **Polymer**: A polymer is a large molecule made up of repeating subunits (monomers). This term does not specifically refer to ribosomes and mRNA. This option is incorrect.
- **Polyribosome**: This term refers to a complex formed by multiple ribosomes translating a single mRNA strand. This option is correct.
- **Polypeptide**: This refers to a chain of amino acids linked by peptide bonds, which is the product of translation, not the complex itself. This option is incorrect.

5. **Conclusion**:
- The correct answer is **C) Polyribosome**, as it accurately describes a complex of ribosomes attached to a single strand of mRNA.