Advertisements
Advertisements
Question
In the given flow diagram, the replication of retrovirus in a host is shown. Observe and answer the following questions.
Fill in (1) and (2)
Why is the virus called retrovirus?
Can the infected cell survive while viruses are being replicated and released?

Advertisements
Solution
(a) 
(b) The virus is called retrovirus because it does not follow the central dogma of biology (DNA → RNA → Proteins). Its genetic material is RNA that is transcribed to DNA using enzyme reverse transcriptase.
(c) Yes, the infected cell can survive, while viruses are being replicated and released.
APPEARS IN
RELATED QUESTIONS
Explain the various types of cancer
Give the symptoms of cancer.
Name one chemical carcinogen with its target tissue.
- How is a tumor formed in the body?
- What are the two types of tumor?
- Which of these under goes metastasis?
Explain any four therapies used in treatment of cancer.
Cancer cells are more easily damaged by radiations than normal cells because they are ______.
Which type of cancer affects lymph nodes and spleen?
Metastasis is associated with ______.
Carcinogens are cancer causing agents.
Cancers of connective tissues are called ______.
If a patient is advised Anti Retroviral Therapy, which infection is he suffering from? Name the causative organism.
Genes involved in cancer are ______.
Which disease is caused by HPV?
Treatment of cancer by X-rays or gamma rays is ______.
Name any two techniques used to detect the cancer of internal organs and write about any one of them.
What is a benign tumour?
What is a malignant tumour?
Which of the following is a characteristic of benign tumours?
