Which component of cholesterol would classify it as a lipid?
A) carbohydrates
B) phosphates
C) glycerol
D) hydrocarbons
D
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In flowering plants how many sperm cells are typically produced from each microspore mother cell?
a. 1 b. 2 c. 3 d. 4 e. 8
A researcher performs RNAi against a gene that is required for viability in C. elegans embryos and 70% of the embryos die during development. Some of the embryos may have survived because
A) RNAi did not eliminate the mRNA (and protein) of the gene completely. B) the dsRNA was used to translate additional proteins to compensate for the mRNA that was degraded. C) RNAi eliminated the protein product of the gene. D) of issues related to fertilization.
Which of these is the best description of a virus?
A. chemical complexes of RNA or DNA protected by a protein shell B. a member of the kingdom Virusae C. the smallest bacteria known D. a noncellular living organism E. an invasive cell that cannot stop reproducing
Discuss the various aspects of cancer, such as the difference between a benign and a malignant tumor, communication
in cancer cells, metastasis, and carcinogens. What will be an ideal response?