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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. describes an individual that has two different alleles for a trait
  3. a graphic used to predict the results of a genetic cross (predict the offspring)
  4. 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)
  5. the ratio (fraction) of the genotypes that appear in offspring
  6. describes organisms or genotypes that are homozygous for a specific trait and thus always produce offspring that have the same phenotype for that trait (always produces offspring with the same trait)

6 True/False questions

  1. Alleleone of the alternative forms of a gene that governs a characteristic, such as hair color (genes occur in pairs-two letters, each letter is an allele)

          

  2. Dominantdescribes the allele that is fully expressed when carried by only one of a pair of homologous chromosomes (brown eyes)

          

  3. Genotypean organism's appearance or other detectable characteristic that results from the organism's genotype and the environment

          

  4. 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)

          

  5. Monohybrid Crossa cross between individuals that involves one pair of contrasting traits

          

  6. Phenotypean organism's appearance or other detectable characteristic that results from the organism's genotype and the environment