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Meiosis

QuestionAnswer
What is the end result of Meiosis? 4 cells; each with 1 set of chromosomes only
What term refers to cells with only 1 complete set of chromosomes? Haploid
What term refers to cells with 2 complete sets of chromosomes? Diploid
What are homologous chromosomes? Pairs of chromosomes that carry the same genes
What are gametes? sperm and egg cells
Body cells are known as what? somatic cells
During what stage of meiosis does crossing over occur? During Prophase 1
What is crossing over? The exchange of genetic material between non-sister chromatids of a tetrad.
When does random assortment occur? During Metaphase 1
How does meiosis result in genetic diversity? Through Crossing Over in Prophase 1 and Random Assortment of tetrads in Metaphase 1
How do Metaphase 1 and Metaphase 2 differ? Homologous chromosome pairs (tetrads) line up side by side during Metaphase 1; Sister chromatids line up single file in Metaphase 2
What is gametogenesis? the production of sperm or eggs
What is the end result of meiosis? 4 cells with only 1 complete set of chromosomes each
Why is meiosis important? So chromosome number does not increase with each fertilization & for genetic variation
In which stage of meiosis do homologous chromosomes come together and become visible? Prophase 1
In which stage of meiosis do the pairs of homologous chromosomes lined up in the middle of the cell move to the poles? Anaphase 1
In which stage of meiosis do the sister chromatids line up single file at the equator? Metaphase 2
In which stage of meiosis do the sister chromatids separate and get pulled to the poles Anaphase 2
What structures connect the centromere of sister chromatids to the centriole? spindle fibers
Created by: 100001916589047
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