Even in the presence of a properly signaling TNF receptor signaling pathway that involves FADD and TRADD, breast cancer cells do not undergo apoptosis in response to TNF-alpha, allowing tumors to grow and metastasize. A close inspection shows that one protein is no longer expressed in these cells. The addition of TNF-alpha leads to TRADD and FADD complexes but does not lead to cell death. Procaspase 3 is expressed and functioning. A western blotting analysis shows that NFkB is expressed, and other studies show that the protein is functioning properly in these cells. What is the most likely cause of resistance to cell death by TNF-alpha in breast cancer cells

hey, i believe your answer would be d. sugar ribose and the base uracil. i believe this is the answer, because rna consists of sugar ribose, adenine, guanine, cytosine, and uracil.

your first option is incorrect, because that's dna. where it consists of sugar deoxyribose, adenine, guanine, cytosine and thymine.

your second option is also incorrect, this is because sugar deoxyribose is in dna, and uracil is in rna. these two do not make sense together.

your third option being incorrect, because sugar ribose is in rna, but not the base of thymine. rna consists of uracil, not thymine.

lastly your fourth option being correct! this answer is correct, because both sugar ribose, and the base uracil are in rna! ~

answer is d. sugar ribose and the base uracil.