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Honors Biology Spring Midterm Review III

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  • Probability of green offspring is
    3/4
  • If the result of cell division is four haploid daughter cells, _________ happened
    Meiosis
  • Probability of a gamete receiving a G?
    50%
  • Some alleles are neither dominant nor recessive. Name this pattern of inheritance.
    Incomplete dominance
  • Where more than one form of a gene for a single trait exists, some alleles may be ________ and the others ____________.
    Dominant and recessive
  • Which are homozygous?
    1, 4
  • _______________.The phenotypes for both alleles are clearly expressed.
    Codominance
  • Principle of Dominance
    An organism with at least one dominant allele will exhibit that trait.
  • The different forms of a gene are called
    Alleles
  • What is segregation ?
    Segregation: separation of alleles during gamete formation
  • Which are heterozygous?
    2,3
  • Haploid
    containing only a single set of chromosomes; 1N
  • Define diploid
    containing both sets of homologous chromosomes; 2N
  • What cell is likely to be a skin cell ?
    Diploid cell
  • Probability of yellow offspring is
    1/4
  • What cell is likely to be a gamete ?
    Haploid cell
  • What is the ratio of phenotypes in a dihybrid cross (2 factor)?
    9:3:3:1 ratio of phenotypes