Actin and myosin are important proteins associated with the select one: a. contraction of muscles. b. synthesis of glycogen. c. production of hemoglobin. d. polymerization of dna.

Drag each label to the correct location on the image. each label can be used more than once. a scientist introduced mutations in a gene sequence isolated from bacteria. study the sequence, and identify the steps where the mutations may affect the formation of proteins. in the sequence, black letters stand for protein coding regions and red letters stand for noncoding regions. protein will not be changed. protein may be changed. attcgtgttc atcgtgttc atcgtattc attcgtattc

Cells destroy body cells infected by a virus or bacteria.

What organ is the first to receive nutrients that have been absorbed from the digestive tract?