MeiosisMeiosis

Making Sperm and EggsMaking Sperm and Eggs

VocabularyVocabularyYou get half your chromosomes from your mom and half from your dad--these pairs are called homologous.

A cell that contains a complete set of chromosomes is called diploid (2N).

Sperm/eggs have a single set of chromosomes, they are called haploid (1N).

You get half your chromosomes from your mom and half from your dad--these pairs are called homologous.

A cell that contains a complete set of chromosomes is called diploid (2N).

Sperm/eggs have a single set of chromosomes, they are called haploid (1N).

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Meiosis: process that cuts the number of chromosomes in a

diploid cell in half

Meiosis: process that cuts the number of chromosomes in a

diploid cell in halfMeiosis I

Interphase I:chromosomes replicate

Prophase I: each chromosome pairs with its homologous chromosome to form a tetrad

Metaphase I: Tetrads line up in the middle of the cell

Anaphase I: Tetrads separate, homologous chromosomes pulled to opposite sides of the cell

Result: Two (unique) diploid daughter cells

Meiosis IInterphase I:chromosomes replicate

Prophase I: each chromosome pairs with its homologous chromosome to form a tetrad

Metaphase I: Tetrads line up in the middle of the cell

Anaphase I: Tetrads separate, homologous chromosomes pulled to opposite sides of the cell

Result: Two (unique) diploid daughter cells

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Meiosis IIMeiosis IIProphase II: chromosomes do not replicate again

Metaphase II: chromosomes line up in the middle of the cells

Anaphase II: Sister chromatids separate and move to opposite ends of the cell

Telophase II: Membranes form = four haploid daughter cells

Prophase II: chromosomes do not replicate again

Metaphase II: chromosomes line up in the middle of the cells

Anaphase II: Sister chromatids separate and move to opposite ends of the cell

Telophase II: Membranes form = four haploid daughter cells

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Mitosis/Meiosis PosterMitosis/Meiosis PosterMitosis Poster: copy figure 10-5 (page 246-247) IN COLOR (make sure the chromosomes are the correct/accurate colors)Copy the CARTOON cellsLabel each stage and copy the caption for what is going on

ON THE OPPOSITE SIDEMeiosis Poster: copy figure 11-15 (page 276-277) IN COLOR (make sure the chromosomes are the correct/accurate colors)Label each stage and copy the caption for what is going on

DUE THURSDAY

Mitosis Poster: copy figure 10-5 (page 246-247) IN COLOR (make sure the chromosomes are the correct/accurate colors)Copy the CARTOON cellsLabel each stage and copy the caption for what is going on

ON THE OPPOSITE SIDEMeiosis Poster: copy figure 11-15 (page 276-277) IN COLOR (make sure the chromosomes are the correct/accurate colors)Label each stage and copy the caption for what is going on

DUE THURSDAY