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| One mutation in a gene causes serious human blood disease. |
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| Results in red blood cells that are shaped like a cresent moon |
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| Each member of a gene pair that determines a specific trait |
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| Come from the same fertilized egg. Look the same |
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| A trait expressed differently in males than in females |
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| traits that are carried on the X chromosome |
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| process that involves the removal of fluids from the sac that surrounds a developing baby |
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| used to detect genetic disorders |
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| Disorder caused by a sex linked trait |
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| also called bleeders disease;blood clots slowly or not at all |
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| Determines the sex of a baby |
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| Sex linked recessive disease |
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| cannot tell the difference between certain colors |
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| three or more alleles in a certain trait |
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| an example of a human karyotype |
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| Has an extra pair of chromosomes in the 21st pair |
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| shows size,number, an shape of all chromosomes in an organism. |
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| Shows relationships amoung idividuals in a family |
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| Can be used to find a trait in the family |
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| A group of three chromosomes |
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| Failure of a chromosome pair to seperate during Meiosis. |
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Definition
| Body cells recieve either more chromosomes or fewer than usual |
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