Shideazr's Crash Course Video 15 Facts

1)Nobody knew about chromosomes until the middle of the 20th century
2)Heredity- the passing of genetics from parent to offspring
3)Aristotle thought that the father supplied the life force and the mother supplied the building blocks
4)Aristotle thought that semen was highly purified menstrual blood
5) Greg Mendel said that inheritance followed particular patterns
6)Greg Mendel came up with how genetics are passed to generations in the 1800's
7)All eukaryotic cells have chromosomes
8)Human cells have 23 pairs of chromosomes
9)Chromosome 16 determines the wetness or dryness of ear wax
10)Gametes have only one set of chromosomes
11) Gametes are sex cells
13)Homozygus is when both alleles being passed on are the same
14)Heterozygus is when both alleles being passed on are different
15)Phenotype is what is expressed physically