BIO SCI 93: DNA TO ORGANISMS (UCI) FINAL EXAM 2024 WITH 100% CORRECT ANSWERS

BIO SCI 93: DNA TO ORGANISMS (UCI) FINAL EXAM 2024 WITH 100% CORRECT ANSWERS When does crossing over occur? - correct answer during Meiosis I between non-sister chromatids Crossing Over - correct answer One mechanism by which genetic variability is generated during Meiosis (looks like a little switch/tiny tag) When can nondisjunction occur? - correct answer 1. Anaphase of Mitosis 2. Anaphase I of Meiosis 3. Anaphase II of Meiosis Nondisjunction - correct answer Chromosomes are unable to separate properly to opposite poles during anaphase because a centromere fails to break or a spindle fails to attach Anaploidy - correct answer During Mitosis, 2 sister chromatids end up in one place/one pole Random Fertilization - correct answer Due the millions of possibilities of gametes coming from the 2 united parent gametes, this is another source of genetic variation in offspring Barr Bodies - correct answer The inactive X chromosome in a female somatic cell Law of Independent Assortment - correct answer Members of one gene pair separate from one another independently of the members of other genes