Week 3-4 Reflection

http://www.perunamaa.net/donrosa/intro_long.shtml

For the weeks of January 21st - January 31st, I learned about Pedigrees and Family Tree. The different shapes in the pedigree represent gender, Circle =  Female and Square = Male. The shapes are also shaded or not, representing carrying the trait = shaded, and not carrying the trait = unshaded. In sex linked traits men either have the trait or they don't because of their Y chromosome. Unlike females that can have the trait, be carriers, or not have the trait. Although, in not sex linked traits males and females can be carriers, have the trait, and not have the trait. If either gender is a carrier then the shape is half shaded. In Family Trees, it can show a family members lineage as far back as they can remember. We began a project using websites to document our family trees. You can put in a lot of information such as age, dead or alive, current or former spouses, and other things. Family Trees are genealogical trees.