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of 18 available terms

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6 Written Questions

6 Multiple Choice Questions

  1. the first generation of offspring obtained from an experimental cross of two organisms
  2. a condition in which a trait in an individual is intermediate between the phenotype of the individual's two parents because the dominant allele is unable to express itself fully (different dominance)
  3. describes a trait or an allele that is expressed only when two recessive alleles for the same characteristic are inherited (blue eyes, shows up in the F2 generation)
  4. an organism's appearance or other detectable characteristic that results from the organism's genotype and the environment
  5. describes the allele that is fully expressed when carried by only one of a pair of homologous chromosomes (brown eyes)
  6. parental generation, the first two individuals that mate in a genetic cross (parents)

6 True/False Questions

  1. Dihybrid Crossa cross between individuals that involves one pair of contrasting traits

          

  2. Complete dominancea condition in which a trait in an individual is intermediate between the phenotype of the individual's two parents because the dominant allele is unable to express itself fully (different dominance)

          

  3. Allelethe entire genetic makeup of an organism; also the combination of genes for one or more specific traits (uses letters in problems)

          

  4. Phenotypic ratiothe ratio (fraction) of the genotypes that appear in offspring

          

  5. Homozygousdescribes an individual that has two different alleles for a trait

          

  6. Punnett Squarea graphic used to predict the results of a genetic cross (predict the offspring)

          

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