QUES: Epigenetics is the study of mitotically and/or meiotically heritable changes in gene function that cannot be explained by changes in the underlying DNA sequence but cause the organism's genes to behave (or "express themselves") differently. One example of epigenetic change is the marking of the genes by DNA methylation which determines whether they will be expressed or not. Gene expression can also be controlled by repressor proteins that attach to silencer regions of the DNA and prevent that region of the DNA code from being expressed. Epigenetic marks may be added or removed from the DNA during programmed stages of development of the plant, and are responsible, for example, for the differences between anthers, petals and normal leaves, despite the fact that they all have the same underlying genetic code. Epigenetic changes may be temporary or may remain through successive cell divisions for the remainder of the cell's life. Some epigenetic changes have been shown to be heritable, while others are reset in the germ cells.

What does epigenetics study?
What is the answer?
ANS: changes in gene function
QUES: The evidence of the early texts suggests that Siddhartha Gautama was born in a community that was on the periphery, both geographically and culturally, of the northeastern Indian subcontinent in the fifth century BCE. It was either a small republic, in which case his father was an elected chieftain, or an oligarchy, in which case his father was an oligarch.

If Siddhartha lived in a small republic, his father would have been a what?
What is the answer?
ANS: elected chieftain
QUES: Detroit and the rest of southeastern Michigan have a humid continental climate (Koppen Dfa) which is influenced by the Great Lakes; the city and close-in suburbs are part of USDA Hardiness zone 6b, with farther-out northern and western suburbs generally falling in zone 6a. Winters are cold, with moderate snowfall and temperatures not rising above freezing on an average 44 days annually, while dropping to or below 0 F (18 C) on an average 4.4 days a year; summers are warm to hot with temperatures exceeding 90 F (32 C) on 12 days. The warm season runs from May to September. The monthly daily mean temperature ranges from 25.6 F (3.6 C) in January to 73.6 F (23.1 C) in July. Official temperature extremes range from 105 F (41 C) on July 24, 1934 down to 21 F (29 C) on January 21, 1984; the record low maximum is 4 F (20 C) on January 19, 1994, while, conversely the record high minimum is 80 F (27 C) on August 1, 2006, the most recent of five occurrences. A decade or two may pass between readings of 100 F (38 C) or higher, which last occurred July 17, 2012. The average window for freezing temperatures is October 20 thru April 22, allowing a growing season of 180 days.

What body of water affects Detroit's climate?
What is the answer?
ANS:
Great Lakes