Some tumor-causing mutations increase the activity or number of molecules that stimulate cell division. Genes in which such mutations occur are called _______.
A. chromatids
B. cancer genes
C. metastastatic genes
D. proto-oncogenes
E. neoplasmic genes
Answer: D
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Genome sequencing of the parasitic protist Plasmodium falciparum has been completed. One of the results is
A. Plasmodium is highly genetically similar to its host, Anopheles. B. Plasmodium is highly genetically similar to its host, Drosophila. C. Plasmodium has a chloroplast-like apicoplast that could be targeted by drugs. D. Plasmodium produces fatty acids that are similar to ones found in humans and could be targeted by drugs.
In order to activate the cell mediated immune response, which event must occur?
a. A naïve helper T cell must bind to an antigen-presenting dendritic cell.
Dolly the sheep ________
A) was the first mother who gave birth to a cloned sheep B) received its nuclear DNA from the foster mother C) received its mother's nucleus from her bone marrow D) was the first mammal cloned from an adult cell
Which flower part develops into a fruit?
a. ovule b. ovary c. base of the style d. stigma e. stamen