The average annual snowfall amount is 37 inches (949 mm). Average daily highs are around 30 - 38Â°F (-1Â°C - 3Â°C). Springtime in Chicago means blooming flowers and a lively lakefront. Temperatures really start to warm up with April typically in the 50's Â°F (10-15Â°C) and May up to around 70Â°F (21Â°C). Rainfall averages 3.5 - 3.8 inches (92 - 94mm). Summers in Chicago are warm with average daytime temperatures around 78Â°F to 92Â°F (26Â°C - 33Â°C). Rainfall averages range from 3.7 - 4.3 inches (94 to 109mm). It's cooler near the lake, and June is typically the wettest month of the year.
Answer: There's no simple answer to this question. Some abnormal genes are associated with an increased risk of breast cancer. In families that have an abnormal gene, it can be passed down from a parent to a child. Only 10% (1 in 10) of women with breast cancer have inherited an abnormal breast cancer gene.
The result is that mtDNA is passed on only along the maternal line. This means that all of the mtDNA in the cells of a person's body are copies of his or her mother's mtDNA, and all of the mother's mtDNA is a copy of her mother's, and so on. No matter how far back you go, mtDNA is always inherited only from the mother. If you went back six generations in your own family tree, you'd see that your nuclear DNA is inherited from 32 men and 32 women. Your mtDNA, on the other hand, would have come from only one of those 32 women.