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20 Cards in this Set
- Front
- Back
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Define Developmental Disabilities |
occurs before the age of 18 life long effects someone's learning can be physical or mental effects someone in 3 of the 7 |
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Mendalian Laws |
1. Genes occur in pairs 2. Every living thing receives a pair of allelesfor every trait (phenotype and genotype) 3. One allele for every trait comes from the motherand one from the father 4. Each gene occupies a particular fixed positionon a particular chromosome |
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What do we inherit? |
-cleft palate -widow’s peak -dimples and freckles -straight or curly hair -the ability to curl your tongue |
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define: Meiosis |
Sex chromosomes (egg and sperm) |
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define: Mitosis |
Celldivision in which two daughter cells of identical chromosomes composition tothe parent cell are formed. Each contains 46 chromosomes |
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Where are there lots of chromosomal errors? |
Meiosis |
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What percent of chromosomal abnormalities occur in miscarriage? |
60% |
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What is a chromosomal abnormality? |
Unequalcell division which result in too many or too few chromosomes |
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how many people are born with gene disorders? |
1/1500 |
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what is Galactosemia? |
inability to produce enzymes and breakdown sugar found in milk...recessive inheritance |
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what is tay sachs? |
inabilitiy to break down lipids (fats and oils)...recessive inheritance |
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what is PKU |
inaility to break down protein...recessive inheritance |
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what is MPS |
inability to break down complex sugars.... recessive inheritance |
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what is a recessive inheritance? |
Defectoccurs in a gene on one of the 22 pairs of non chromosomes Passed down from parents |
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what is the percent of having a recessive inheritance between boy and girls |
equal |
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how are dominant disorders transmitted? |
deletion occurs in one of the non-sex chromosomes |
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what is Neurofibromatosis? |
elephant man... dominant disorder |
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fragile x is what type of disorder? |
sex linked |
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who is more likely to have a sexlinked disorder? |
males |
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what is a sexlinked disorder? |
an error that occurs durring meiosis |
