WARM UP List anything and everything you know about chromosomes, mitosis, meiosis, or cell division.

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Presentation transcript:

WARM UP List anything and everything you know about chromosomes, mitosis, meiosis, or cell division.

Chromosomal Inheritance

Chromosomes DNA coiled on proteins Humans have 46 22 pairs XY pair Homologous pairs Alleles of genes Humans have 46 22 pairs XY pair

Karyotype Shows # of chromosomes and their shape Can determine mutations

Inheritance Parents = 23 pairs 23 chromosome sex cell Fertilization Meiosis Fertilization Genetic recombination Offspring = 23 pairs 1 from each parent

Meiosis Forms variety of parental sex cells Crossing over Segregation Independent assortment

Hereditary Evolution New traits form or frequencies change as meiosis and fertilization create variety Mutations Natural selection Speciation

WRAP UP Explain the process of meiosis, including the names of all 8 steps and at least 3 words to describe each of those steps.

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