BIO.SCI.8.A

Analyze the significance of chromosome reduction, independent assortment, and crossing-over during meiosis in increasing diversity in populations of organisms that reproduce sexually.

Biology · Texas Essential Knowledge and Skills (TEKS) · TEKS 2022

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Vocabulary
chromosome reductionindependent assortmentcrossing-overmeiosisdiversitypopulationsorganismssexual reproduction
Skills
  • analyze (significance of chromosome reduction during meiosis) #dok3
  • analyze (significance of independent assortment during meiosis) #dok3
  • analyze (significance of crossing-over during meiosis) #dok3
  • explain (how meiosis increases diversity in populations of sexually reproducing organisms) #dok2
Learning Targets
  • I can define chromosome reduction, independent assortment, and crossing-over in meiosis. #dok1
  • I can describe the phases of meiosis where chromosome reduction, independent assortment, and crossing-over occur. #dok1
  • I can explain how chromosome reduction, independent assortment, and crossing-over contribute to genetic diversity. #dok2
  • I can distinguish between the mechanisms of chromosome reduction, independent assortment, and crossing-over in meiosis. #dok2
  • I can analyze the significance of meiosis in increasing genetic diversity within populations. #dok3
  • I can evaluate how errors in meiosis may impact genetic diversity in populations. #dok3
Big Ideas
  • Meiosis introduces genetic variation in populations of sexually reproducing organisms through specific processes.
  • The mechanisms of chromosome reduction, independent assortment, and crossing-over are essential for increasing the diversity of traits in offspring.
Essential Questions
  • How does meiosis contribute to genetic diversity in sexually reproducing populations?
  • What are chromosome reduction, independent assortment, and crossing-over, and how do they occur during meiosis?
  • Why are genetic diversity and variation important for the survival of populations?
  • How might errors in chromosome reduction, independent assortment, or crossing-over affect the offspring of an organism?
  • In what ways do the processes of meiosis compare to those of mitosis regarding genetic diversity?