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Chapter 12 AP BIO Genetics

Quiz by Jennifer Faulknor

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33 questions
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  • Q1
    Gene variations that arise by mutation and exist at the same relative locations on homologous chromosomes
    Allele
    30s
  • Q2
    Any of the non-sex chromosomes
    Autosomes
    30s
  • Q3
    Hypothetical inheritance pattern in which parental traits are
    Blending Theory of Inheritance
    30s
  • Q4
    In a heterozygote, complete and simultaneous expression of both alleles for the same characteristic
    Codominance
    30s
  • Q5
    Inheritance pattern in which a character shows a range of trait values with small gradations rather than large gaps between them
    Continuous Variation
    30s
  • Q6
    result of a cross between two true-breeding parents that express different traits for two characteristics
    Dihybrid
    30s
  • Q7
    inheritance pattern in which traits are distinct and are transmitted independently of one another
    Discontinuous variation
    30s
  • Q8
    trait which confers the same physical appearance whether an individual has two copies of the trait or one copy of the dominant trait and one copy of the recessive trait
    Dominant
    30s
  • Q9
    inheritance pattern in which an allele is lethal both in the homozygote and the heterozygote; this allele can only be transmitted if the lethality phenotype occurs after reproductive age
    Dominant Lethal
    30s
  • Q10
    antagonistic interaction between genes such that one gene masks or interferes with the expression of another
    Epistasis
    30s
  • Q11
    first filial generation in a cross; the offspring of the parental generation
    F1 Generation
    30s
  • Q12
    second filial generation produced when F1 individuals are self-crossed or fertilized with each
    F2 Generation
    30s
  • Q13
    underlying genetic makeup, consisting of both physically visible and non-expressed alleles, of an organism
    Genotype
    30s
  • Q14
    presence of only one allele for a characteristic, as in X-linkage; hemizygosity makes descriptions of dominance and recessiveness irrelevant
    Hemizygous
    30s
  • Q15
    having two different alleles for a given gene on the homologous chromosome
    Heterozygous
    30s

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