Which of the following is true of an X-linked gene, but not of a Y-linked gene?
  • wild type
  • aneuploidy
  • The male gamete determines sex because each male gamete can contribute either an X or a Y chromosome.
  • The gene is present in both males and females.
In general, the frequency with which crossing over occurs between two linked genes depends on what?
  • The gene is present in both males and females.
  • homologous chromosomes separating during meiosis I
  • from the mother only
  • how far apart they are on the chromosome
What can we observe in order to visualize Mendel's Law of Segregation?
  • The gene is present in both males and females.
  • homologous chromosomes separating during meiosis I
  • from the mother only
  • how far apart they are on the chromosome
How are human mitochondria inherited?
  • genomic imprinting
  • from the mother only
  • homologous chromosomes separating during meiosis I
  • how far apart they are on the chromosome
-Bob has a genetic condition that affects his skin.-Bob's wife, Eleanor, has normal skin. No one in Eleanor's family has ever had the skin condition.-Bob and Eleanor have a large family. Of their eleven children, all six of their sons have normal skin, but all five of their daughters have the same skin condition as Bob.Based on Bob and Eleanor's family history, what inheritance pattern does the skin condition most likely follow?
  • genomic imprinting
  • aneuploidy
  • X-linked dominant
  • an inversion
What results if a fragment of a chromosome breaks off and then reattaches to the original chromosome at the same place but in the reverse direction?
  • wild type
  • an inversion
  • genomic imprinting
  • aneuploidy
What name is given to the most common phenotype in a natural population?
  • wild type
  • genomic imprinting
  • an inversion
  • aneuploidy
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