Each answer box represents a mechanism by which eukaryotes can regulate gene expression. determine which of the five mechanisms each example represents. not all examples will be used.

Information from outside the cell, the proteins cell inherits from mother cell if it is DNA is damaged and what amount of ATP it has. This is an example of gene expression. Information from outside the cell, its chemical which signals from other cells. The mechanical signal from nutrients levels is an extracellular matrix. A good example is a growth factor, chemical signal instructs target cell to divide and grow.

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides

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.