The chloroplast is 

A. the site of photosynthesis.
B. a reproductive structure.
C. necessary for diffusion.
D. a cause of fermentation.


A. the site of photosynthesis.

Biology & Microbiology

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What is the function of protein kinase C (PKC) in gene regulation?

a. PKC triggers apoptosis in cells exhibiting malformed RNA molecules. b. PKC binds to NF-?B, inhibiting it from entering the nucleus for RNA transcription. c. PKC phosphorylates I?-B, preventing it from inhibiting RNA transcription. d. PKC is the transcription factor that initiates RNA transcription in the nucleus.

Biology & Microbiology

It has only been since 1998 that a method for culturing stem cells has been described

Indicate whether the statement is true or false.

Biology & Microbiology

Environmental factors typically influence inheritance of ________

A) codominance B) dominantly inherited traits C) polygenic traits D) trihybrid crosses E) multiple alleles

Biology & Microbiology

Many types of cells have stores of lipids in their cytoplasm, usually seen as fat droplets. What is the lipid most commonly found in these droplets?

(a) cholesterol (b) palmitic acid (c) isoprene (d) triacylglycerol

Biology & Microbiology