INDEPENDENT SEGREGATION

• WHEN DOES VARIATION IN MEIOSIS OCCUR?

  meiosis I
• WHAT ARE THE TWO TYPES OF VARIATION IN MEIOSIS?

  1. Independent Segregation
  2. Crossing over
• WHAT HAPPENS IN INDEPENDENT SEGREGATION?

  • homologous pairs of chromosomes line up opposite each other at cell equator
  • pairs are separated
  • one of each pair ends up in daughter cell
  • large number of possible combinations
• WHAT SIDE DOES EACH PAIR OF CHROMOSOME ALIGN AT?

  random
• WHAT IS THE TOTAL POSSIBLE NUMBER OF COMBINATIONS?

  2^n

  -> n = number of homologous pairs