Mastering the Basics of Chromosomal Sex Determination and X-Linked Inheritance

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Questions and Answers

Co decyduje o płci organizmu?

  • Tylko czynniki chromosomalne
  • Tylko czynniki hormonalne
  • Kombinacja czynników chromosomalnych, genetycznych i hormonalnych (correct)
  • Tylko czynniki genetyczne

Jakie są skutki anomalii w chromosomalnym określaniu płci?

  • Diploidia
  • Triploidia
  • Aneuploidia (correct)
  • Haploidia

Który z genów chromosomu X jest bardziej narażony na mutacje u mężczyzn?

  • Wszystkie geny na chromosomie X sÄ… równie narażone na mutacje u obu pÅ‚ci
  • Geny kodujÄ…ce funkcje dla obu pÅ‚ci (correct)
  • Geny kodujÄ…ce funkcje tylko dla kobiet
  • Geny kodujÄ…ce funkcje tylko dla mężczyzn

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Study Notes

  • Development of the reproductive system varies by organism's sex
  • Sex is determined by a combination of chromosomal, genetic, and hormonal factors
  • Chromosomal sex determination occurs at fertilization
  • Anomalies in chromosomal sex determination can result in aneuploidy
  • Chromosomes X and Y differ in size and gene content
  • Over 1400 genes are on chromosome X, encoding functions for both sexes
  • Mutations in X-linked genes are more common in males
  • X-linked mutations from the mother affect sons more than daughters
  • X-linked inheritance is associated with disorders such as hemophilia and color blindness
  • The text provides a link to a map of human chromosomes.

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