Which of the following are the functions of RNA

Options

A. It is carrier of genetic information from DNA to ribosomes synthesising polypeptides
B. It carries amino acids to ribosome
C. It is a constituent component of ribosomes
D. All of the above

Explanation

**Step-by-Step Solution:**

1. **Understanding RNA**: RNA stands for ribonucleic acid, which plays a crucial role in the process of gene expression. There are three main types of RNA: mRNA (messenger RNA), rRNA (ribosomal RNA), and tRNA (transfer RNA).

2. **Functions of Different Types of RNA**:
- **rRNA (Ribosomal RNA)**: This type of RNA is a key component of ribosomes. It binds with proteins to form ribosomes, which are essential for protein synthesis.
- **mRNA (Messenger RNA)**: mRNA carries the genetic information from DNA to the ribosome. It contains the coded instructions necessary for the synthesis of proteins (polypeptides).
- **tRNA (Transfer RNA)**: tRNA functions as an adapter molecule that carries specific amino acids to the ribosome during protein synthesis. It helps translate the mRNA sequence into a polypeptide chain.

3. **Identifying Functions of RNA**: The question asks for the functions of RNA. Based on the explanations above, we can summarize the functions:
- mRNA is a carrier of genetic information from DNA to ribosomes for polypeptide synthesis.
- tRNA carries amino acids to the ribosome.
- rRNA is a constituent component of ribosomes.

4. **Evaluating Options**: If the options provided include:
- A) Carrier of genetic information from DNA to ribosome synthesizing polypeptide
- B) Carries the amino acid to ribosome
- C) Constituent component of the ribosome
- D) All of the above

Since all the options describe functions of RNA, the correct answer is D) All of the above.

**Final Answer**: The functions of RNA include all of the above options.

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