ch. 8 biology – Flashcards
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______ is the branch of biology that studies heredity.
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genetics is the branch of biology that studies heredity
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what is heredity?
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the passing on of characteristics/traits from parents to offspring
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how are traits passed on?
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by chromosomes
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where are genes found?
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chromosomes
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on every gene there are a pair of _______ that contain traits.
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on every gene there are a pair of alleles that contain triats.
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the trait that "wins" is called what?
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dominant
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the trait that "loses" is called what?
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recessive
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whats the combination of alleles for a gene?
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genotype
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the way the organism looks is the what?
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phenotype
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what homozygous?
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the same
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what is heterozygous?
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different
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all offspring get what from each parent?
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gene
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whats genetics?
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The branch of biology that studies heredity.
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How are traits passed on?
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The traits are encoded on the genes found on the chromosomes.
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for every gene there are a pair of what?
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for every gene there are a pair of alleles
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who is Gregor Mendel?
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founder of genetics
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punnett square
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a method to predict the possible genotypes in the offspring of a cross.
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hybrid
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offspring formed by parents having different forms of a trait.
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monoybird
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1 trait
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dihybird
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2 traits
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How many alleles does each gamete have?
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one
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when are the gametes formed?
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during meiosis
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Sickle Cell Anemia
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co-dominant
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Achondroplasia (dorwfinism)
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dominant
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Albinism
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recessive
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Blue People
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recessive
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Huntington's Disease
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dominant
