You have spent two decades studying a muscular dystrophy disorder. All previous pedigree data indicate this is an X-linked dominant trait, you notice that in one instance the trait skips one daughter coming from an effected father. If this disease is truly X-linked dominant, what is a likely explanation as to why it was not seen in this single female? O Only environmental conditions actually cause the disease O This disease may not be 100% penetrant for the disease O Skipping generations is common for X-linked dominant traits O The definition for X-linked dominant no longer means what it did when this disease was first discovered O This disease must not actually be X-linked dominant

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Stress

Stress is defined as the feeling of being overwhelmed or unable to cope with emotional or mental pressure. Any event or action that makes a person annoyed, furious, or nervous can trigger it. Chemical changes in the body caused by stress can cause blood pressure, blood sugar levels, and heart rate to rise.