BIO1110 - WeekEight.docx - BIO1110.05 Week 8 Notes Sex Determination in Humans o Females XX chromosomes Eggs always carry one X chromosomes o Males XY

BIO1110 - WeekEight.docx - BIO1110.05 Week 8 Notes Sex...

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BIO1110.05 - Week 8 Notes Sex Determination in Humans: o Females: XX chromosomes Eggs always carry one X chromosomes o Males: XY chromosomes Sperm cells carry either an X or Y Sex-linked traits: o Colorblindness, and many other factors such as height, eye color, eyesight, hereditary diseases, skin color, hair color, etc. Chromosomes: o Long DNA molecules containing genes and other nucleotide sequences. Hershey Chase Experiment: o DNA has phosphorus, but no sulfur o Protein has sulfur, no phosphorus o In 1952 this experiment proves that it is DNA, not protein, that is the genetic material Algae: o Oxygenic photosynthetic organism that is not a land plant o Not monophyletic Some “algae” are more closely related to us than others
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