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5 Written questions

5 Matching questions

  1. recessive allele
  2. dominant allele
  3. Principle of Dominance
  4. somatic cells
  5. rule of multiplication
  1. a diploid body cells
  2. b descriptive of an allele in a heterozygous individual that does not appear to affect a trait
  3. c descriptive of an allele in a heterozygous individual that appears to be the only one affecting a trait
  4. d The dominant allele is expressed even when only 1 gene is present; written with CAPITAL letter; Ex. PP or Pp - purple; The recessive allele is expressed only when both genes are recessive; written with lower case letter; Ex. pp- white
  5. e Probability of combination is product of individual probabilities

5 Multiple choice questions

  1. diagram showing the probabilities of the possible outcomes of a genetic cross
  2. having two homologous sets of chromosomes
  3. A sperm or egg carries only 1 allele of each pair; The alleles separate during gamete formation
  4. one of the matching pair of chromosomes, one inherited from each parent
  5. having different alleles for a gene

5 True/False questions

  1. Parental (P) Generationparental plants


  2. pedigreefamily tree that records and traces the occurrence of a trait in a family


  3. haploidhaving a single set of chromosomes


  4. gametesegg or sperm sex cell that contains a single set of chromosomes, one from each homologous pair


  5. carrierindividual who has one copy of the allele for a recessive disorder and does not exhibit symptoms


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