Which is not a DNA virus –
**Core Concept**
DNA viruses are a class of viruses that contain DNA as their genetic material. They can cause a wide range of diseases in humans, including infections of the skin, respiratory tract, and central nervous system.
**Why the Correct Answer is Right**
The correct answer is a virus that does not belong to the DNA virus group. DNA viruses replicate using their own DNA, which is typically double-stranded. They can cause diseases by altering the host cell's behavior or by directly killing the host cells. For example, the human papillomavirus (HPV) is a DNA virus that causes cervical cancer.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is a DNA virus that causes infections of the skin and mucous membranes, such as herpes simplex virus (HSV).
**Option B:** This option is a DNA virus that causes diseases of the liver, such as hepatitis B virus (HBV).
**Option C:** This option is a DNA virus that causes diseases of the eye, such as herpes simplex keratitis.
**Clinical Pearl / High-Yield Fact**
DNA viruses can be classified into different families, including herpesviridae, papillomaviridae, and poxviridae. Each family has distinct characteristics and can cause different types of diseases.
**Correct Answer: D.**