Given below, is the result of a complementation test for seven independent mutants (A to G). '+' represents complementation; '_' represents non complementation. Based on the above, which one of the following conclusions is correct

a) The mutations can be ordered in a three cistron as A-G-B-C-D-E-F

b) All mutations belong to a single cistron, but their order cannot be determined.

c) There are three cistrons, mutations A and G represent one cistron, B, C and D represent the second cistron and E and F represents the third cistron.

d) There are three linkage groups, mutations A and G  represent linkage group-I, B, C and D represent linkage group-II, and E and F represents linkage group-III

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#Question id: 1488

#Unit 4. Cell Communication and Cell Signaling

 Which of the following proteins has been implicated in aneuploidy of cancer cells?

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#Question id: 1489

#Unit 4. Cell Communication and Cell Signaling

How might you distinguish between a malignant tumor and a benign tumor?

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#Question id: 1491

#Unit 4. Cell Communication and Cell Signaling

All cancer-causing agents identified thus far have what feature in common?

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#Question id: 1492

#Unit 4. Cell Communication and Cell Signaling

Cancer is said to be monoclonal. What does that mean?

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#Question id: 1493

#Unit 4. Cell Communication and Cell Signaling

In what way is tumor progression like biological evolution?

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#Question id: 1494

#Unit 4. Cell Communication and Cell Signaling

Of agents that can act as either initiators or promoters, which can be mutagenic?