BiologyTestReview - 46 chromosomes (carriers of genes, move...

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46 chromosomes (carriers of genes, move and reside) 23 pairs of homologous chromosome of humans Homologous chromosomes have the same genes 1-22 (pairs) is autosomes 23 rd pair is sex chromosomes (xx female; xy male) Diploid – 2 sets of chromosomes, one chromosome from each parent Process of meiosis makes gametes Gametes are on set off chromosomes (23, haploid) Similar/related species have similar number of chromosomes Chromosomes are composed of 2 chromatins, which are connected at the centromere (maybe in the center or be in symmetric Prophase I 4 chromosomes (2 long, 2 short) Homologous chromosomes Metaphase Are paired in the equator of cell (center) Anaphase I Separation of homologous chromosomes Chromosome disjunction Telaphase I 2 cells, each with one long and short chromosomes Prophase II No pairing, each cell has 1 long, 1 short Metaphase Each cell lined up at the equator, no pairing Anaphase II Chromatin disjunction Going to opposite poles
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BiologyTestReview - 46 chromosomes (carriers of genes, move...

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