The most conclusive evidence that viruses cause cancers is provided by
A) finding oncogenes in viruses.
B) the presence of antibodies against viruses in cancer patients.
C) cancer following injection of cell-free filtrates.
D) treating cancer with antibodies.
E) some liver cancer patients having had hepatitis.
C
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A population includes
(a) all organisms of the same species in one place at a given moment. (b) the organisms and their physical environment. (c) the physical environment in which an organism exists. (d) all organisms within the environment at a given moment.
After the second meiotic division, the number of chromosomes in each daughter cell is ________ that of the original parental cell.
A) half B) double C) the same as D) quadruple
The photoreceptors that allow for an individual's black-and-white vision are known as ________
Fill in the blank(s) with correct word
A consensus sequence in the untranslated leader sequence of a prokaryotic mRNA, which serves as a ribosome binding site is called the ________ - ________ sequence.
What will be an ideal response?