'Sister chromatids separate' diaporamas de présentation

MEIOSIS

MEIOSIS. Reduction-Division Genetic Recombination. Meiosis. The form of cell division by which GAMETES , with HALF the number of CHROMOSOMES , are produced. DIPLOID (2n) ? HAPLOID (n) Meiosis is SEXUAL reproduction. TWO divisions ( MEIOSIS I and MEIOSIS II ). Meiosis.

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Meiosis Formation of Gametes

Meiosis Formation of Gametes. Facts About Meiosis. Daughter cells contain half the number of chromosomes as the original cell (haploid or 1n ). Produces gametes Egg and sperm Occurs in the testes in males spermatogenesis Occurs in the ovaries in females Oogenesis.

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Meiosis Formation of Gametes

Meiosis Formation of Gametes. Facts About Meiosis. Daughter cells contain half the number of chromosomes as the original cell (haploid or 1n ). Produces gametes Egg and sperm Occurs in the testes in males spermatogenesis Occurs in the ovaries in females Oogenesis.

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Meiosis Formation of Gametes (Eggs & Sperm)

Meiosis Formation of Gametes (Eggs & Sperm). Facts About Meiosis. Preceded by interphase which includes replication Two meiotic divisions --- Meiosis I and Meiosis II Original cell is diploid (2n) Four daughter cells produced that are haploid (1n). Facts About Meiosis.

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8.5 How Does Mitotic Cell Division Produce Genetically Identical Daughter Cells?

8.5 How Does Mitotic Cell Division Produce Genetically Identical Daughter Cells?. Mitosis is divided into four phases. Prophase Metaphase Anaphase Telophase. 8.5 How Does Mitotic Cell Division Produce Genetically Identical Daughter Cells?. Interphase, prophase, and metaphase.

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(CHAPTER 15- Brooker Text) October 23 & 25, 2007 Bio 184 Dr. Tom Peavy

Eukaryotic Gene Regulation. (CHAPTER 15- Brooker Text) October 23 & 25, 2007 Bio 184 Dr. Tom Peavy. Eukaryotic Gene Regulation. Transcriptional Regulation:. Regulatory transcription factors may activate or inhibit Compaction level of chromatin influences transcription

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Mitosis

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Mitosis

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cell division: meiosis

cell division: meiosis. biology 1. Offspring acquire genes from parents by inheriting chromosomes Two general strategies Sexual reproduction Asexual reproduction Fertilization and meiosis alternate in a sexual lifecycle Meiosis reduces chromosome number from diploid to haploid

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Class Topics

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CELL CYCLE

CELL CYCLE. By: Austin Agee. Interphase (prep stage). 90% of the cells division is spent in this stage Grows D.N.A. replicates (exact copy) Prepares to divide. http://student.ccbcmd.edu/~gkaiser/biotutorials/dna/mitosis/acinterphase.html.

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Cell Cycle

Cell Cycle. C h e l s e y A l i f f. Interphase. -grow -DNA replicates (exact copy) -prepares to divide. http://emt.bu.edu/em610/em610_ol_spring_2008/yanti/interphase.html. cwx.prenhall.com/ bookbind / pubbooks /martini10/chapter2/ medialib /interphase.html. Prophase.

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Cell Cycle

Cell Cycle. By: Alexa Moore. Interphase. Grow DNA replicates (exact copy) Prepares to divide 90% of life. http://biology.uoregon.edu/reference/ort_mitosis/images/I-image1-label.jpg. http://emt.bu.edu/em610/em610_ol_spring_2008/yanti/interphase_text.JPG. Mitosis Stage 1: Prophase.

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Haploid cells develop into mature gametes.

KEY CONCEPT During meiosis, diploid cells undergo two cell divisions that result in haploid cells. Haploid cells develop into mature gametes. Gametogenesis is the production of gametes. Gametogenesis differs between females and males. Sperm become streamlined and motile.

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