Is mitosis asexual or sexual reproduction?
A. asexual
B. sexual
Answer: A. asexual
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Pharmacogenomics
a. seeks to customize drugs to the cellular proteomes of a patient. b. might target specific disease mechanisms and thus minimize side effects. c. would account for an individual's metabolism. d. would require a person's genetic profile to be determined and subsequently stored in some database. e. all of the above
The molecule that fits into the active site of an enzyme and reacts with the enzyme is
A. always a carbohydrate. B. an analog. C. always a protein. D. always broken down by the enzyme. E. a substrate.
Answer the following statements true (T) or false (F)
1. In the bacterium E. coli, in the absence of lactose, a repressor protein binds to the operator region of the DNA, preventing the transcription of the genes of the lactose operon. 2. In eukaryotic cells, gene expression may be controlled by not allowing mRNA to leave the nucleus. 3. A somatic mutation is a mutation that occurs in cells that give rise to gametes. 4. A bacteriophage infects a bacterial cell by injecting nucleic acid into the bacterium. 5. The components of DNA that produce an organism's genetic information are the deoxyribose nucleotides.
Which general term is used to group various biological and behavioral properties of organisms that act to prevent or reduce interbreeding?
A) allopatric speciation B) reproductive isolating mechanisms C) inbreeding D) phyletic evolution E) genetic divergence