As DNA replication begins, enzymes separate the double stranded DNA molecule into two single strands, separating the nitrogen base pairs. What happens next? A. Each single strand of DNA serves as a template to create the new complimentary strand. Following base pair rules, free nucleotides within the cell are joined to each side of the separated DNA strands.
B. Messenger RNA provides the information necessary to join free nucleotides within the cell to the two separated DNA strands.
C. Free nucleotides within the cell are joined to the separated DNA strands in a random order increasing genetic variation in the species.
D. tranfer RNA molecules, with specific anticodons that are complimentary to the codons found in the original DNA strand, bond the correct free nucleotides in the correct order to separated DNA strands.

hypoxemia refers to a below usual concentration of oxygen in the blood, mainly in the arteries. hypoxemia is an indication of an issue associated with circulation or breathing and may lead to various symptoms like shortness of breath.  

the condition is identified by determining the level of oxygen in the blood sample obtained from an artery. it can also be predicted by determining the oxygen saturation of the blood with the application of a pulse oximeter.  

the normal arterial oxygen is about 75 to 100 mm hg. the values underneath 60 mm hg is generally considered with the requirement for supplemental oxygen. the normal pulse oximeter readings generally range between 95 to 100 percent. the values under 90 percent are regarded as low.  

in the given case, the oxygen saturation is measured at 93 percent, hence, there is no need to administer oxygen, that is, one should withhold oxygen.