Question

Which of these is a characteristic of cancer cells?

A. They do not exhibit contact inhibitors
B. They lack specialization
C. They have abnormal chromosomes
D. They fail to undergo apoptosis
E. All of these are correct

Answer 1

I think it is c but not completely sure

Answer 2

I would disagree with Dennis_Elan. One of the things separating cancer cells from normal cells in a body is their ability to keep growing and dividing - never dying out. Cancer cells can have 'normal chromosomes'. I think D is true of cancer cells.

Answer 3

yah its d
a) contact inhibition means when a cell comes in contact with a neighbouring cell it stops proliferating/ dividing. Cancer cells lack this property , they continue to divide even when they contact neighbouring cells.
b) basically undifferentiated /unspecialized cells divide whereas the differentiated or specialized cells don't divide. The specialized cells in your body like neurons or muscle cells don't divide as they are completely differentiated cells and perform specialized functions like neurotransmission and muscle contraction respectively. Cancer cells are unspecialized and therefore they continue to divide.
c) All the human cells except gametes carry 46 chromosomes . But cancer cells generally contain more then 46 chromosomes and this property of carrying more number of chromosomes is called aneuploidy.
d) cancer cells fail to undergo apoptosis . and that is why most cancers are resistant to drugs , a property known as chemoresistance. This is because they have protein channels in their plasma membrane which eject the drug out of the cell preventing the drug from killing the cell .

Answer 4

A. Cancer cells do not exhibit contact inhibitors.
B. Cancer cells lack specialization, thus B is also correct.
C. Cancer cells have an abnormal amount of chromosomes.
D. Cancer cells do not undergo apoptosis.

E is the answer, as all these choices are correct.

Answer 5

i agree with @jojokiw3 because cancer cells show the properties listed :)