Acouple has a child with down syndrome. the mother is 39 years old at the time of delivery. which of the following is the most probable cause of the child's condition? a couple has a child with down syndrome. the mother is 39 years old at the time of delivery. which of the following is the most probable cause of the child's condition? one of the gametes in the mother most likely underwent nondisjunction during meiosis. the mother had a chromosomal duplication. the woman inherited this tendency from her parents. one member of the couple underwent nondisjunction in somatic cell production.

Which of the following was discovered in the piedmont region of north carolina in 1799?

When comparing the northern and southern hemisphere, why are the peak maximum and minimum values of insolation at different times of the year? specifically, why is the peak max of incoming solar radiation in june for the northern hemisphere, but in december for the southern hemisphere? pick the best, most complete answer. because of variations in the incident angle of solar radiation, due to the tilt of earth's axis, the northern hemisphere receives more direct solar radiation in june while the southern hemisphere receives less direct solar radiation. the reverse is true in december. because of earth's tilt, as the earth progresses in its revolution around the sun, the northern hemisphere is relatively closer to the sun in june while the southern hemisphere is relatively farther from the sun. the reverse is true in december. because of earth's elliptical orbit, the northern hemisphere is relatively closer to the sun in june/july while the southern hemisphere is relatively farther from the sun. the reverse is true in december. because of variations in the incident angle of solar radiation and the length of day, due to the tilt of earth's axis, the northern hemisphere receives more direct solar radiation and has longer daylight hours in june while the southern hemisphere receives less direct solar radiation and shorter daylight hours. the reverse is true in december.

Situation #1: imagine that you are a free black male living in columbus, oh in 1863. you have seen the recruiting poster and have been thinking a lot about whether or not to enlist in the union army. write a one-page letter (double spaced) to your mother telling her of the decision you have made about enlisting (or not enlisting). be sure to explain the reasons that caused you to make the decision.