Which is not true about mismatch repair?
A. It utilizes an endonuclease.
B. It requires DNA polymerase and DNA ligase.
C. It utilizes the state of methylation of the DNA to differentiate between strands.
D. It removes both strands in the mismatch area.
D
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Which of the following statements about global warming is correct?
A. Higher latitudes have warmed more than equatorial regions. B. Overall, Earth's mean surface temperature has increased by only 0.5 degrees. C. A comparison of temperature data collected between 1999 and 2008 to temperature data collected between 1940 and 1980 shows that all environments on Earth have experienced an increase in mean annual temperature. D. Oceanic environments have warmed more than terrestrial environments. E. None of the answer options are correct.
. F. Skinner first introduced operant conditioning experiments. What happens in these experiments?
A. An animal learns to associate its behavioral response with a fixed action pattern. B. An animal learns to associate its behavioral response with an instinct. C. An animal learns to associate its behavioral response with its biological clock. D. An animal learns to associate its behavioral response with a reward or a punishment. E. An animal learns to associate its behavioral response with a conditional stimulus.
In Drosophila melanogaster (2n = 8), a fly with seven chromosomes could be called a haplo-IV
Indicate whether the statement is true or false
Farmers have been able to genetically engineer a wide variety of crops that possess an enormous diversity of traits. If a farmer wanted to increase the ability of his crops to access ground water that is several meters below ground which type of root system would he want?
A. aerial roots B. taproot C. fibrous roots D. pneumatophores E. prop roots