Certain types of cancer are caused by viruses.

Answer the following statement true (T) or false (F)


True

Biology & Microbiology

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________ mutations occur in the promoter or operator region of a gene or set of genes and affects the expression of the downstream genes without affecting the amino acid sequences of the gene products.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Which enzyme(s) digest nucleic acids?

a. pepsins b. disaccharidases c. aminopeptidase d. pancreatic nucleases e. amylase

Biology & Microbiology

Which is the dominant structure during the life cycle of a fern?

1.gametophyte 2.sporophyte 3.archegonium 4.sporangium

Biology & Microbiology

When Darwin covered the tip of a grass seedling with metal foil and then illuminated it from one side, what happened to the seedling?

A. It bent away from the directional light. B. It did not respond to the directional light. C. It waved back and forth. D. It wilted and died. E. It grew toward the light, as expected.

Biology & Microbiology