Advertisements
Advertisements
प्रश्न
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
उत्तर
(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
संबंधित प्रश्न
Cancer is one of the most dreaded diseases. Explain 'Contact inhibition' and 'Metastasis' with respect to the disease
Name any two techniques that are useful in detecting cancers of internal organs.
How is a cancerous cell different from a normal cell?
What is cancer?
antiviral proteins released by cells infected by the virus are called ______.
Cancers of connective tissues are called ______.
Stomach cancer is characterised as ______.
How do normal cells get transformed into cancerous neoplastic cells? Elaborate giving three examples of inducing agent.
Cancer is related to ______
Cancer causing genes are called ______.
In malignant tumors, the cells proliferate, grow rapidly and move to other parts of the body to form new tumors. This stage of disease is called ______.
Give the full form of CT and MRI. How are they different from each other? Where are they used?
Which disease is caused by HPV?
Why is a malignant tumour considered to be more damaging than a benign tumour? Explain.
What is a benign tumour?
What is leukaemia?
What is adenocarcinoma?
Which of the following is a characteristic of malignant tumours?
