Prophase I
What is the pairing of homologous chromosomes called?
Synapsis
Where do homologous pairs line up?
Along the metaphase plate / middle
What separates during anaphase I?
Homologous chromosomes
Meiosis II is most similar to what process?
Mitosis
What does heterozygous mean?
Two different alleles (Aa)
Which chromatids exchange DNA during crossing over — sister or non-sister?
Non-sister chromatids
What attaches to the kinetochores during Metaphase I?
Spindle microtubules/Fibers
Which Mendelian law comes from anaphase I?
Law of Segregation
What separates in anaphase II?
Sister chromatids
Red + white → pink flowers = what dominance?
Incomplete dominance
What structure forms when homologs pair up?
Bivalent
What rule explains that the orientation of each homologous pair is random?
Independent assortment
Why don’t sister chromatids separate in anaphase I?
Cohesins at centromeres remain intact
How many haploid cells form after meiosis II?
4
Red + white → red & white patches = what dominance?
Codominance
What is the MAIN source of genetic variation created in Prophase I?
Crossing over
How does metaphase I contribute to genetic diversity?
Random orientation of homologs → different chromosome combos in gametes
Sister chromatids are pulled apart in Anaphase I- True or False
FALSE- Homologous chromosomes are pulled apart
Why are meiosis II products genetically unique?
Variation from crossing over + assortment in meiosis I
Possible gametes from genotype AaBb?
AB, Ab, aB, ab