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SETS OF CHROMOSOMES

SETS OF CHROMOSOMES. DIPLOID (2n) Has full number (2 sets, one from mom and one from dad) of chromosomes (2 in each homologous pair). Total number of chromosomes = 46 for humans Body cells HAPLOID (1n)

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SETS OF CHROMOSOMES

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  1. SETS OF CHROMOSOMES • DIPLOID (2n) • Has full number (2 sets, one from mom and one from dad) of chromosomes (2 in each homologous pair). • Total number of chromosomes = 46 for humans • Body cells • HAPLOID (1n) • Has ½ the number (1 set, one from either mom or dad) of chromosomes (only 1 from each homologous pair). • Total number of chromosomes = 23 for humans • Sex cells (gametes)

  2. TWO TYPES OF CHROMOSOMES • SEX CHROMOSOMES- (Total for humans= 2) • Determines the sex of an organism; may also carry genes for other characteristics. • Either X or Y • XX = female XY = male • AUTOSOMES- (Total for humans= 44) • All other chromosomes in an organism. • Contain all other genes. • KARYOTYPE-picture of a person’s chromosomes; arranges chromosomes in pairs from largest to smallest; can be used to determine sex or presence of a chromosomal abnormality.

  3. KARYOTYPE

  4. Is it possible to Clone a Dinosaur? Still confused? Watch this video from the Khan academy on Chromosomes, Chromatids, and Chromatin.

  5. Check #3: Do You Understand This Concept? (Let’s see!) Click HERE to see.

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