9.5 Flashcards
What’s the difference between inversion and translocation?
inversion is within the chromosome and translocation is through multiple
what’s deletion?
a missing gene or two
Whats a trisomy and monosomy
a group of three chromosomes and a singular chromosome caused by nondisjunction
what does nondisjunction mean
when chromosomes don’t separate properly
Whats the difference of nondisjunction in meiosis I vs meiosis II
meiosis I is with homologous chromosomes and meiosis II is with sister chromatids
What’s the result of nondisjunction in meiosis I only?
two chromosomes that are n+1 and two that are n-1
why can nondisjunction in meiosis II be better?
one pair can still proceed normally rather than zero