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Transcript of Karyotypes
What? made of tightly-coiled DNA molecule
Where? located in the nucleus of each cell
How many? Humans have 23 pairs in each cell.
Why do you think they come in pairs? Karyotype A picture of a person's chromosomes
arranged in order from largest to smallest
sex chromosomes are shown last Chromosomal Disorders What do you think happens if someone has an extra chromosome?
What about a missing chromosome?
What about an extra or missing piece of a chromosome? Karyotypes Hi! My name is Miss Kettner.
Today we get to explore human genes!
Please take out a sheet of paper and Journal for 2 minutes:
What makes you different from other people? Gene
Sections of DNA that carry information and affects how people look, act, think, and function. Scientists use Karyotypes to check for abnormalties in a person's genes. http://learn.genetics.utah.edu/content/begin/traits/karyotype/ Unsorted Sorted
Example: Trisomy 21 Commonly known as Down Syndrome A Few of the Characteristics of Trisomy 21:
often unable to have children
eye disorders Your project for today:
Create a model of a human karyotype!
The other person sitting at your table will be your partner.
Supplies you will need:
bag of gummy worms
Make sure you:
Arrange chromosomes from large to small, with sex chromosomes last.
Number each chromosomal pair.
How do you think scientists match pairs together?