Which of these mechanisms exerts gene control by suppressing transcription in eukaryotes?
a)acetylation of histone proteins b)methylation of dna c)action of activator proteins

One statements is an example of a scientific observation. another statement is an example of a scientific explanation. identify the correct statement for each category to illustrate how scientific explanations are inferred from scientific observations.

The reactions that occur in the ribosome, where amino acids are combined to form proteins are anabolic or catabolic?

Which is not a characteristic of bacteria? a. they are unicellular. b. they are prokaryotic. c. they are the smallest form of life on earth. d. they are multicellular.