... than would be expected for their family. It is usually near the bottom of the normal range, and is approximately 145 to 168 cm in men and 132 to 155 cm in women. One of the more notable aspects of Down syndrome is the wide variety of features and characteristics of people ... Mothers Age Incidence of Down Syndrome Under 30 Less than 1 in 1,000 30 1 in 900 35 1 in 400 36 1 in 300 37 1 in 230 38 1 in 180 39 1 in 135 40 1 in 105 42 1 in 60 44 1 in 35 46 1 in 20 48 1 in 16 49 1 in 12 Source: Hook, E.G., Lindsjo, A. ... relatively simple tests that find most of the fetuses with Down syndrome...

• Word Count: 2977
• Approx Pages: 12
• Has Bibliography
• Grade Level: High School

... for many years, it was first brought to the public's eye in the 80's by America. In America, HIV/AIDS was mostly spread through gay men, blood transfusions and drug usage. Although it was said to be spread through the gay community, it can effect anyone regardless of sexual orientation, gender, ... , vaginal fluids and even breast milk. HIV is a lentivirus that attacks the immune system, since it's discovery over 76 million people have been infected and 39 million people have died. After being infected with HIV/AIDS for 2-4 weeks, you may begin to experience flu-like symptoms called ARS...

• Word Count: 648
• Approx Pages: 3
• Grade Level: High School