The enzyme that is commonly used for primer extensions in the PCR method works best at what temperature?
a. 25°C
b. 56°C
c. 72°C
d. 94°C
C
Taq polymerase is the enzyme commonly used for primer extensions, which occurs at 72°C.
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Mendel's experiments with garden peas differed from those of other plant hybridizers of the time in that:
A. Mendel studied true-breeding strains, rather than poorly defined material. B. Mendel focused on a small number of easily contrasted traits, rather than a large number of more complex traits. C. Mendel quantified his results and looked for statistical patterns, rather than simply noting the presence or absence of a trait among a group of offspring. D. Mendel performed no crosses between strains, whereas other hybridizers did. E. Mendel studied true-breeding strains, focused on a small number of easily contrasted traits, and quantified results.
A biologist who searches for explanations about natural phenomena solely to satisfy her curiosity and advance our
collective knowledge of living systems practices ____.
a. artificial science b. basic research c. general research d. applied research e. simple research
Homeostasis refers to ____
a. the ability of a cell to reproduce b. directions the cell receives from DNA c. the maintenance of a constant internal state
d. the extraction of energy from nutrients e. the ability of organisms to move within their environment
What needs to occur to maintain the same genes in a population?
What will be an ideal response?