Consider the chromosome.

The parts of a chromosome are labeled. The lines on the chromosome are labeled b.
Which best describes the function of the part labeled b?
carries all the genetic information of the organism
provides the master instructions for the cell
joins sister chromatids
codes for a specific trait

How does the closing of the ductus arteriosus and ductus venosus alter circulation in an infant? a. increases blood flow to the pulmonary artery and increases blood flow to the umbilical vein b. increases blood flow to the pulmonary artery and reduces blood flow to the umbilical vein c. reduces blood flow to the pulmonary vein and increases blood flow to the umbilical artery d. reduces blood flow to the pulmonary vein and reduces blood flow to the umbilical artery