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.
Carcinoma is cancer of ______ cells.
Enlist any four therapies used to treat a cancer patient.
- How is a tumor formed in the body?
- What are the two types of tumor?
- Which of these under goes metastasis?
Which type of cancer affects lymph nodes and spleen?
Metastasis is associated with ______.
Carcinogens are cancer causing agents.
Blood cancer is called ______.
Chemotherapy: Chemicals: Radiation therapy: ______.
The cancer that generally affects lymph nodes and spleen is ______.
Cancers of connective tissues are called ______.
Stomach cancer is characterised as ______.
Benign tumour is the one which
Treatment of cancer by X-rays or gamma rays is ______.
Why is a malignant tumour considered to be more damaging than a benign tumour? Explain.
Name any two techniques used to detect the cancer of internal organs and write about any one of them.
