Molecular charge is an important characteristic influencing protein migration on a gel. what accounts for the variation in the molecular charge of proteins?

The human body needs energy in order to carry out life processes such as breathing. where does the body get this energy? a. from eating food b. from learning about new things c. from lying in the sun d. from sleeping

How would you describe an allele that be expressed and determines an organisms appearance? a. uncapitalized b. responsive c. recessive d. dominant

Which of the following would most directly interfere with sperm production? ingestion of a substance that mimicked inhibin interruption of sustentocytes' production of abp low sperm count use of synthetic steroids (testosterone)