Examlex
During early embryonic development,one of the X chromosomes is randomly inactivated in each cell to form a Barr body,a condensed structure near the nuclear envelope that can be used to identify the sex of the individual and/or the presence of a sex chromosome abnormality.In individuals with abnormal numbers of X chromosomes,all but one of the X chromosomes will be inactivated.What would the number of Barr bodies,sex,and syndrome (if any)be for each of the following situations?
Systolic
Relating to the phase of the heartbeat when the heart muscle contracts and pumps blood into the arteries.
Diastolic
Pertaining to the phase of the heartbeat when the heart muscle relaxes and allows the chambers to fill with blood.
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Medications that can be bought without a prescription, typically for the treatment of minor health problems.
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Vitamins, minerals, herbals, and other substances taken by mouth without a prescription to promote health and well-being.
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