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8 terms

Biology - Ch11 - Sexual Reproduction and Meiosis

STUDY
PLAY
Meiosis is a form of cell division that leads to the production of _________.
Gametes (Egg and sperm cells) and are HAPLOID (1 set of chromosomes)
Adult body cells, aka ____, are diploid/haploid.
Somatic cells, diploid (2 sets of chromosomes)
Sexual reproduction includes the fusion of gametes, aka ______, to produce a diploid _________.
fertilization, zygote
Meiosis involves two successsive _____ divisions with no replication of _________________.
cell, genetic material
Meiosis results in a reduction of chromosome number from ________ to ________.
diploid to halpoid
Synapsis
Homologous chromosomes become closely associated with eachother. Proteins between the homologues hold them in a synaptonemal complex.
Crossing over
genetic recombination between non sister chromatids

*chiasmata: sites of crossing over
Mitosis produces 2 cells that are _________ to eachother.
identical