2Nd 9Wks

Front 1

In humans four blood types are possible:

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A,b,ab, o

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That’s are.... alleles that determine blood type

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Three

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The three blood type alleles are

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Ia, Ib, and i

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Alleles Ia and Ib are

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Codominant

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And the i is

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Recessive

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Many genes have two or more alleles and are said to have

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Multiple alleles

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In polygenic inheritance, the determination of a given characteristic is the result of:

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The interaction of many genes

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Traits such as ...... are not determined by one pair of alleles

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Size, height, shape, weight, color, metabolic, rate, and behavior

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Mendels principles form the basis of

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Modern genetics

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The inheritance of traits is determined by individual units known as

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Genes

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Genes are passed from parent to

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Offspring

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Each gene has two or more forms called

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Alleles

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Each parent has ..... alleles for a particular trait that they inherited from their parents

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Two

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The alleles for one trait segregate....... of the alleles for another trait

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Independently

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Gene expression is always the result of the interaction of:

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Genetic potential with the environment

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In multicellular organisms, cells go through

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Differentiation

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Stem cells are important because they cansingle celled organisms reproduce by

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Differentiate into a variety of specialized cell types

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Single celled organisms reproduce by

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Binary fission

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A piece of DNA that provides a set of instructions to a cell to make a certain protein

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Gene

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Any alternative forms of a gene that may occur at a specific locus

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Allele

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Two of the same alleles at a specific locus

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Homozygous

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Two different alleles at a specific locus

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Heterozygous

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Refers to the genetic makeup of a specific set of genes

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Genotype

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The physical characteristics, or traits, of an individual

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Phenotype

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An allele that is expressed even two different alleles are present

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Dominant