Have you ever wondered who you look like more, your mother or father? The answer can be found in...
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Have you ever wondered who you look like more, your mother or father? The answer can be found in your genes!
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The purpose for this project was to learn more about genes and to figure out why people look the way they do.
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1. Get pictures of offspring, their parents, & their grandparents
2. Find out & compare phenotypes of the parents to offspring.
3. Compare grandparents to parents.4. Compare the children's appearance to
grandparents.5. Record the data on the pedigree.
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Does the offspring of two people have more physical characteristics of their mother or their father?
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A Gene is a physical unit of heredity. there is about 20,000 or 25,000 genes in the human body.
A pedigree is a chart that tells someone all of the possible known phenotypes.
Phenotypes are physical traits you inherit from you parents.
Genotype is internally coded inheritable information carried by a living organism.
Recessive is when you produce little or no phenotype when occurring in heterozygous conditions with contrasting alleles.
Dominant is when a genetic trait is considered dominant if it is expressed in a person who has only one copy of that gene.
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Camera Pictures of 4 family’s Paper suitable for writing/ making
diagrams Pencil
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Independent Variable~The family’s being used for experimentation.
Dependent Variable~The phenotypes that we are being compared too.
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PedigreesShaded=black (dominant)Not shaded= Orange (recessive)Carrier= Gray ( carries gene but doesn’t show it) = passed away
Male
Female
Mating
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P1 F1 F2
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Mrs. Gossage’s family hair color: Brown (black) Blonde (orange)
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Eye Color:Brown (dominant)
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Nose size:Shaded= broad Not shaded= Narrow
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F2
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P1 F1 F2
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Black brown
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Shaded= broad Not shaed= Narrow
Gray means person is a carrier of genes
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P1 F1 F2
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P1 F1 F2
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P1 F1 F 2 F3
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Mrs. bower
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Mrs. bower
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Black =Shaded brown= Not shaded
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Mrs. bower
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During our experiment, we figured out most of our subjects inherited more phenotypes from their father. Reasons for this is because the mother had more recessive genes than their father.
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http://kidshealth.org/kid/talk/qa/what_is_gene.html
http://ghr.nlm.nih.gov/handbook/basics/gene
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Mrs. Morgan Mrs. Scott Ms. Bower Mrs. Gossage Mr. Smith Microsoft PowerPoint.
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