TCA cycle enzymes are found in the ________ ________ of eukaryotic cells.
Fill in the blank(s) with the appropriate word(s).
mitochondrial matrix
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Around 1914, ________ determined that DNA was an important component in ________ by using a staining technique that is still in use today.
Fill in the blank(s) with the appropriate word(s).
The radioactive decay of 14C produces ____
a. carbon 12 b. carbon 13 c. more carbon 14 d. nitrogen 14 e. oxygen 14
What processes have been hypothesized to influence the evolution of mutation rates?
A) natural selection only B) genetic drift only C) both natural selection and genetic drift, acting in the same direction to either increase or decrease mutation rates D) both natural selection and genetic drift, acting in opposing directions: one process favors increasing mutation rates and the other favors decreasing mutation rates
Nitrifiers are chemolithoautotrophs that use either ________ or ________ as electron donors in a process called nitrification.
Fill in the blank(s) with the appropriate word(s).