Human papiloma virus is a:
**Core Concept**
The human papillomavirus (HPV) is a **DNA virus** that belongs to the Papovaviridae family. It is a significant public health concern due to its association with various cancers and other diseases. HPV infection is primarily spread through **sexual contact**.
**Why the Correct Answer is Right**
HPV is indeed a **DNA virus**, containing double-stranded DNA as its genetic material. This virus infects **basal keratinocytes** and can lead to diseases such as cervical cancer, genital warts, and other **anogenital cancers**. The **E6 and E7 proteins** of high-risk HPV types are known to play a crucial role in the **oncogenic process**.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because HPV is not an **RNA virus**.
**Option B:** This option is incorrect as it does not specify the type of genetic material.
**Option D:** This option is incorrect because it is unrelated to the nature of HPV.
**Clinical Pearl / High-Yield Fact**
It's crucial to remember that **vaccination** against HPV can prevent many cases of cervical cancer and other HPV-related diseases.
**Correct Answer: D. DNA virus**