SLS Bio11 Genetics (JE)
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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Allele | Different form of a gene, they occur during the same locus on homologous chromosomes
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Autosome | Any type of chromosomes except sex chromosomes
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Codominance | A pattern of of inheritance when both alleles of a gene are equally expressed
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Dihybrid | One individual that is heterozygous for two traits it shows the phenotype by the dominant alleles but carries the recessive alleles
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Dominant allele | An allele that gets its phenotypic effect in the heterozygote, it receives the expression of he recessive allele
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Genotype | Genes of an individual of a particular train or trait, designated often by letters sush as BB or Aa
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Heterozygotes | Having two different alleles for a given trait
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Homozygous | Having identical alleles for a given trail, free breeding
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Monohybrid | Individual for one trait that is heterozygous, the phenotype of the dominant allele but but carries the recessive allele
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Multiple allele | Inheritance pattern where there are more than two alleles for a particular trait, every individual only has two possible alleles.
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Phenotype | Different appearance of an organism caused by genotype and environmental influences
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Punnet square | Grid like device that is used to calculate the results of simple genetic crosses
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Recessive allele | Hereditary factor that show itself as a phenotype only when it is the genotype
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Sex chromosomes | Chromosomes that determine the sex of a human being
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Sex linked traits | Allele that happens on the sex chromosomes but can sometimes control a trait ypthat has nothing to do with sexual characteristics
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Test cross | The cross between an individual with dominant phenotype and an individual that has a recessive phenotype. The phenotypic ratio after indicates if the dominant phenotype is homozygous or heterozygous.
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Created by:
jerskine
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