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21 Cards in this Set
- Front
- Back
Blood type is controlled by what
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multiple alleles
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Hemophilia is caused by
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sex linked genes
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inserting a human gene into a bacterial plasmid
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genetic engineering
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oraganism's genetic make up or allele combinations
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genotype
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a organism's phsyical appearance or visble trait
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phenotype
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the allele that is masked over by the dominant allele
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recessive
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a chart that shows all the possible combinations of allele that can result from a genetic cross
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punnit square
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down syndrome
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-called trisome21
-caused by three copies of chromosome 21 -characteristics short stature, stubby fingers, round head, and mental retardation |
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Sex linked recessive condition
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-usually carried on the x chromosome
-males usually have the trait -daughters often are carriers -females inherit the allele from both parents |
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carrier
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-carrier is a person who has one recessive allle and one dominant
-a carrier does nto have the trait but can pass the recessive allele onto the offspring |
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pedigree chart
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-a chart or "family tree" that tracks which family members have a particular trait
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homozygous
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when you have 2 identical allele combination, your a pure breed
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heterozygous
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One allele on a trait is dominant, the other recessive
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heredity
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the passing of a trait from parent to offspring
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multiple alleles
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thee or more forms of a gene that code for a single trait
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differance between meiosis and mitosis
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meiosis- 4 sex cells, 23 chromosomes each
mitosis-2 normal cells, 46 chromosomes each |
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mask's over rcessive allele
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dominant
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Blood type A
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Ia Ia, Ia i
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Blood type B
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Ib Ib, Ib i
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Blood type AB
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Ia Ib
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Blood type O
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i i
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