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24 Cards in this Set
- Front
- Back
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the discredited idea that genes of the parent are averaged in the offspring, like the mixing of paint
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blending inheritance
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Mendel's idea that genes retain their distinct identies as they are passed from one generation to the next.
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particulate inheritance
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two identical allels present in a genotype
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homozygous
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the X and Y chromosomes, whose arrangement govern sex development
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sex chromosomes
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an allele that is expressed only when it is homozygous
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recessive
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two genes that lie close together on the same chromsome, and are usually inherited as a package deal, like white face and blindness in Australian sheep dogs
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linked genes
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the X chromosome in a male has no homologue; alleles on the X have no counterpart on the Y, So the terms homozygous and heterozygous have no meaning in this situation. What is the term for alleles that have no homologous partner
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hemizygous ???
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a population that breeds true for a trait must contain all individuals that have which sort of genotype.
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homozygous
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Alleles like A,B, and O blood group alleles, which exist in more than two forms in various individuals of a population
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multiple alleles
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the appearance of a trait
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phenotype
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the combination of alleles present in an individual
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genotype
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the heterozygous individuals have a phenotype that is intermediate between the phenotypes of the two different homozygotes
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incomplete dominance
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an allele that is expressed equally whether it is homozygous or heterozygous
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dominant
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what is the name for an individual in which different groups of cells in the body are genetically , like two eyes of different colors
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mosaic
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two different alleles present in a genotype
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heterozygous
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a segment of DNA that encodes one protein
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gene
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this part of the flower where the pollen attaches to fertilize the ova
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pistil
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different forms of a gene
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alleles
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the part of a flower that makes the pollen
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anther
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two sets of chromosomes (two copies of every gene)
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diploid
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one set of chromosome ( one copy of every gene)
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haploid
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rules of inheritance
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genetics
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one gene can cause several phenotic traits
lactose sugar |
pleiotropy
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everybody in my family for four generations has blue eyes. What is this term?
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true breeding
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