In the Chinese calendar, the days begin at midnight and end at the next midnight, but people tend to regard the days as beginning at dawn. Currently, the time in days are scaled with hour-minute-second system. In ancient China, the time is divided according to either the shi-shÃ­ ke kÃ¨-and gÄng. diÇn systems
maternal lineage, or 2) Y-chromosome DNA which is inherited through the fatherâs line and is. passed down only to males in each generation and can give information only to males about his. paternal lineage. The other type of genetic ancestry test is one that makes estimates of a personâs ancestry by.
Y-DNA Haplogroups are the groupings of mankind based on analysis of the y-chromosome, which has been passed from father to son since the beginning of mankind.These haplogroup branches characterize the early migrations of population groups. Y-DNA haplogroup is defined as all of the male descendants of the single person who first showed a particular SNP mutation. More information about SNPs at FTDNA. FTDNA also offers Deep Clade tests to confirm your haplogroup assignment and determine where your lineage fits within that haplogroupâs tree.