heyhey!
what students are taught in high school is mendelian genetics, where the particular gene is always, either expressed fully (dominant), or latent unless homologous (recessive). usually they give the examlpe of pea plant colours.
but i think(?) only a small portion of human traits follow dominant mendelian genetics and the rest are incomplete dominance or non-mendelian. wikipedia says "The genetics of hair colors are not yet firmly established. According to one theory, at least two gene pairs control human hair color." was told by my biology teacher that skin colour is also complex!
there are many strange things in genetics. we are taught the presence of Y chromosome makes a child male, hence XX/XXX/XO are female and XY/XXY/XYY/Y are male. however there are a few historical physiologically female people who have XXY genotypes! mendelian genetics is important but can't account for everything!
recommend this wiki page and links at the bottom for more info
what students are taught in high school is mendelian genetics, where the particular gene is always, either expressed fully (dominant), or latent unless homologous (recessive). usually they give the examlpe of pea plant colours.
but i think(?) only a small portion of human traits follow dominant mendelian genetics and the rest are incomplete dominance or non-mendelian. wikipedia says "The genetics of hair colors are not yet firmly established. According to one theory, at least two gene pairs control human hair color." was told by my biology teacher that skin colour is also complex!
there are many strange things in genetics. we are taught the presence of Y chromosome makes a child male, hence XX/XXX/XO are female and XY/XXY/XYY/Y are male. however there are a few historical physiologically female people who have XXY genotypes! mendelian genetics is important but can't account for everything!
recommend this wiki page and links at the bottom for more info