Suppose you are studying photosynthesis in a research lab. You grow your plants in a chamber with a source of water that has a radioactively labeled oxygen atom. What photosynthetic product will be radioactive?
A) NADPH B) CO2 gas C) ATP D) Glucose E) O2 gas
E
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The transcription factor called SHOOT ROOT is involved in the specialization of root cells into what type of tissue?
A. Cortex. B. Epidermis. C. Endodermis. D. Pericyte.
Enzymes contained in _____ break down worn-out organelles, bacteria, and other particles
Fill in the blank(s) with correct word
In terms of epigenetics, how the promoter would be described for a gene that is not expressed in lung tissue but is expressed in heart tissue?
A) The promoters should appear the same in both types of cells, but the mRNA produced would be hypermethylated more in lung cells compared to heart cells. B) In lung cells, the guanines in the promoter would be hypomethylated, but would be hypermethylated in heart cells. C) In lung cells, the cytosines of the promoter would be hypomethylated, and would be hypermethylated in heart cells. D) In lung cells, the cytosines of the promoter would be hypermethylated, and would be hypomethylated in heart cells. E) In lung cells, the guanines in the promoter would be hypermethylated, and would be hypomethylated in heart cells.
Aerotolerant anaerobes ________.
A. synthesize superoxide dismutase, but not catalase B. synthesize both superoxide dismutase and catalase C. synthesize catalase but not superoxide dismutase D. synthesize neither superoxide dismutase nor catalase