Pedigrees & Karyotypes Notes

Pedigrees & Karyotypes Notes - Biology Pedigrees...

Info icon This preview shows pages 1–2. Sign up to view the full content.

Biology Pedigrees & Karyotypes ___ Notes Human Genes Scientific cut out chromosomes when they are condensed for mitosis Pair up in matching sets Called a karyotype Karyotypes A picture of the chromosomes from a huamn cell arranged in pairs by size First 22 pairs are called autosomes Last pair are the sex chromosomes XX female XY male X chromosomes- pink Y chromosomes - blue Karyotypes & Mutations Trisomy Having 3 copies of the chromosomes instead of the pair Examples: Down’s Syndrome- trisomy 21 Klinefelter’s -XXY Monosomy One copy of a chromosome instead of 2 Examples: Turner’s Syndrome Pedigree Chart Shows the relationships within a family over several generations Can show how traits are inherited 1
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

Pedigree How did you read one? Females- circle Males- square Empty/White symbols- no traits Shaded/Black symbols- traits Reading a Pedigree Dominant or Recessive? Autosomal Dominant- every individual with disease will have a
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern