Calculation of Gene Frequency Methods
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Questions and Answers

In a population with two allele types, if the frequency of the recessive phenotype is 0.09, what would be the estimated frequency of the recessive allele?

  • 0.3
  • 0.1 (correct)
  • 0.02
  • 0.6
  • For a population with three alleles A1, a1, and a, if the dominance hierarchy is A1>a1>a, what would be the genotype frequency of A1a1 individuals in this population?

  • $2pr$ (correct)
  • $2pq$
  • $p^2$
  • $q^2$
  • In sex-influenced traits, what relationship between dominance and recessiveness occurs between the two sexes for heterozygous genotypes?

  • They produce different phenotypes in the same sex.
  • They maintain the same dominant phenotype in both sexes.
  • The dominance and recessive relationships of the alleles reverse themselves. (correct)
  • They do not express any phenotype.
  • When considering multiple alleles with codominant relationships like A1=A2>a, how many phenotypically distinct genotypes can be recognized from these alleles?

    <p>4</p> Signup and view all the answers

    If the frequency of allele A is 0.4 in a population, what would be the frequency of the phenotype other than allele A?

    <p>0.36</p> Signup and view all the answers

    In a population, how are gene frequencies determined when gene frequencies cannot be observed directly?

    <p>By counting the number of each allele in homozygous conditions and expressing them as a percentage of total alleles in a sample</p> Signup and view all the answers

    What is the formula used to represent the frequency of the A2 allele?

    <p>q</p> Signup and view all the answers

    How many alleles are present in a sample of N individuals if each individual is diploid at a specific locus?

    <p>$2N$ alleles</p> Signup and view all the answers

    For alleles exhibiting dominance and recessive relationships, which genotypes have dominant phenotypes?

    <p>AA and aa</p> Signup and view all the answers

    What relationship do codominant alleles have with phenotypes in a two-allele system?

    <p>Each genotype has a distinctive phenotype</p> Signup and view all the answers

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