Transcriptionally active genes show lower levels of DNA methylation compared with transcriptionally inactive genes
Indicate whether the statement is true or false
TRUE
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Ectotherms have a higher metabolic rate than endotherms of the same size
A. true B. false
Genetic modification of immune cells has not been shown to be an effective leukemia treatment
a. True b. False Indicate whether the statement is true or false
Creatine phosphate (marketed as "creatine") is a popular supplement taken by weightlifters and other athletes. What might the phosphates in this supplement be expected to do?
A) They readily allow for the regeneration of ATP. B) They break down glucose during the citric acid cycle. C) They accept electrons at the end of the electron transport chain. D) They ensure ATP is never broken down into ADP.
Convergent evolution occurs when:
a. closely related populations or species diverge from one another because natural selection op-erates differently on each of them. b. two or more populations or species become more similar to each other because they are ex-posed to similar selective conditions. c. Both of the above. d. Neither of the above.