A metabolic reaction requires 10 units of enzymatic activity to proceed. If a dominant allele D can generate 8 units of enzyme and a recessive allele d can generate 2 units of enzyme, what can be said of the dominant wild-type allele?
What will be an ideal response?
D is haploinsufficient.
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Approximately how much of the human genome varies between individuals?
A. 99.9% B. 97.0% C. 50.0% D. 3.0% E. 0.1%
Compounds that kill the cell are said to be:
A. cytotoxic. B. genotoxic. C. mutagenic. D. carcinogenic. E. auxotrophic.
Being heterozygous for the hemoglobin gene variant that causes the disease sickle-cell anemia can be advantageous in what situation?
A. in areas where malaria is endemic B. when iron intake is too low in the diet C. in elite athletes because it slightly decreases oxygen affinity D. when a person has anemia caused by other factors E. when a person is at high altitude
Which of the following is required for transposition?
A. F+ plasmid B. bacteriophage C. inverted repeat D. donor cell E. competence