Chronic tissue hypoxia in children can be observed in patients who have history of tetralogy of Fallot, which is a condition of congenital heart disease that has abnormalities occurring simultaneously. Skin color changes, tachycardia, rapid breathing, wheezing, confusion, sweating, and coughing are also seen commonly in chronic hypoxia patients and this should be a hint in assessing the condition of the patient.
If adenine and thymine are complimentary pairs, and we're finding how many thymine there should be in the case that there are 36 adenine bases, there would be 36 thymine bases.
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