Tobacco Mosaic Virus (TMV) genes are

Options

A. Double stranded RNA
B. Single stranded RNA
C. Polyribonucleotides
D. Proteinaceous

Answer

To solve the question regarding the genes of Tobacco Mosaic Virus (TMV), we will follow these steps:

### Step 1: Understand the Nature of TMV
Tobacco Mosaic Virus (TMV) is a virus that infects tobacco plants and belongs to the family Solanaceae. It is essential to know what type of virus TMV is to answer the question correctly.

**Hint:** Research the classification of viruses, focusing on their genetic material.

### Step 2: Identify the Genetic Material of TMV
TMV is classified as a positive-sense RNA virus. This means that its genetic material is composed of RNA, specifically single-stranded RNA (ssRNA).

**Hint:** Look into the differences between single-stranded and double-stranded RNA viruses.

### Step 3: Analyze the Structure of TMV
TMV has a rod-like structure, and its capsid is composed of multiple protein molecules that protect the RNA. The genomic material of TMV is a single-stranded RNA that is approximately 6400 bases long.

**Hint:** Consider how the structure of a virus relates to its genetic material.

### Step 4: Review the Options Given
The options provided are:
1. Double stranded RNA
2. Single stranded RNA
3. Polyribonucleotides
4. Proteinaceous

Since we have established that TMV contains single-stranded RNA, we can eliminate the other options.

**Hint:** Compare the characteristics of each option with what you know about TMV.

### Step 5: Conclude the Answer
Based on the information gathered, the genes of Tobacco Mosaic Virus (TMV) are indeed single-stranded RNA.

**Final Answer:** The genes of Tobacco Mosaic Virus (TMV) are single-stranded RNA.

### Summary of Steps:
1. Understand the nature of TMV.
2. Identify the genetic material of TMV.
3. Analyze the structure of TMV.
4. Review the options given.
5. Conclude the answer.