A train started from point A at a speed of 60 km/hr and after 2 hours another train of same length started from A at a speed of 80 km/hr in the same direction as the first one. After how much time the second train will meet the first train?

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#Question id: 1916

#Unit 4. Cell Communication and Cell Signaling

 Which of the following is an example of a known oncogenic virus?

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#Question id: 1917

#Unit 4. Cell Communication and Cell Signaling

Boon et al. showed that syngeneic transplantable tumors that mutate such that they express strong transplantation antigens are rejected. They called these variants:

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#Question id: 1918

#Unit 4. Cell Communication and Cell Signaling

In pancreatic carcinoma the ras gene:

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#Question id: 1919

#Unit 4. Cell Communication and Cell Signaling

Strongly immunogenic tumors appear:

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#Question id: 1920

#Unit 4. Cell Communication and Cell Signaling

Which of the following is most commonly seen in African children with Burkitt's lymphoma?

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#Question id: 1921

#Unit 4. Cell Communication and Cell Signaling

In Burkitt's lymphoma, a vaccine against which of the following might prove useful?