Home
Class 12
BIOLOGY
Assertion Viruses can contribute to vari...

Assertion Viruses can contribute to various types of cancer in human.
Reason It is esimated that about `15%` of all human cancer cases world wide are due to viruses.

A

Both Assertion and Reason are true and Reason is the correct explanation of Assertion

B

Both Assertion and Reason are true and Reason is not the correct explanation of Assertion

C

Assertion is true, but Reason is false

D

Assertion is false , but Reason is true

Text Solution

Verified by Experts

The correct Answer is:
B
Viruses can cause cancer in humans. They do this by mixing their DNA with the cells DNA, there by triggering changes thatmake the cell grow and multiply.
It ha been suggested that the viruses contribute to about `15%` of all human cancer cases worldwide.
Promotional Banner

Topper's Solved these Questions

  • VIRUSES

    ARIHANT NEET|Exercise C. Medical entrances gallery|32 Videos

  • VIRUSES

    ARIHANT NEET|Exercise Match the Columns|4 Videos

  • TRANSPORT IN PLANTS

    ARIHANT NEET|Exercise Chapter exercises C. Medical entrances gallery (Collection of questions asked in NEET & Various Medical Entrance Exams )|98 Videos

Similar Questions

Explore conceptually related problems

Assertion: All type of cancer result in tumors. Reason: Cancer is easily treatable with antibiotics.

Assertion: Ass succession proceeds the number and types of animals and decomposers change. Reason: At any time during primary or secondary succession , natural or human induced disturbances (fire/deforestation ) can convert a particular seral stage of succession to an earlier stage.

Read the following five statements (A to E) about cancer and select the option with all correct statements: (A) Cancer cells do show a property called contact inhibition. (B) Cancer is one of the most dreaded diseases of humam beings. (C)Cancer causing viruses called oneogenic viruses have ganes called viral oncogenes. (D) Ionising rediations like X-rays and gamma rays and non-ionizing radiations like UV cause DNA repair and prevent cancer. (E) Cancer detction is based on biopsy and histopathological studies of the tissue.

Assertion: Nitrogen is one of the most essential elements of human body. Reason: All types of prokaryotic organisms are able to fix nitrogen.

Assertion: Nuclear waste is an extremely potent pollutant and has to be dealt with utmost caution. Reason: At high doses, nuclear radiation is lethal but at lower doses, it creates various disorders, the most frequent of all being cancer.