Addition of a(n) group to certain lysine residues of a histone protein makes the region of chromatin transcriptionally ; addition of a(n) group to certain lysine residues makes the region of chromatin transcriptionally

Researchers randomly divide participants into groups. each group takes a different amount of omega-3 fatty acid supplements daily for a month. one group receives a placebo. the researchers measure the impact on cholesterol levels in the blood. what is the purpose of random assignment in this experiment? a, to produce treatment groups with similar characteristics b, to ensure that all people with high cholesterol have an equal chance of being selected for the study c, to increase the accuracy of the research results and prevent skewness in the data

Name the two stages involved in protein synthesis and explain what occurs in each of the two stages. be sure to also indicate where each process takes place. plz don't give one sentence answers : d

Penelope studies how the structure and function of the nervous system is related to behavior. she is a psychologist