'Diploid cells' presentation slideshows

Cell Division : Mitosis and Meiosis

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Impacts, Issues: The Color of Skin

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Chromosomes

Chromosomes. Chromosomes. Defined : Tightly coiled DNA Form when cells divide Chromosomes created for the new cells 2 Parts: 1) Chromatids : two identical parts of a chromosome 2) Centromere : Joins chromatids together. Karyotype. Female. Defined : Picture of an individuals chromosomes

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SPECIALIZED SEX CELLS

SPECIALIZED SEX CELLS. WHY ARE THEY NECESSARY?. 4n = 92 too many. Why do diploid organisms need to have specialized sex cells?. Sex cells (gametes: sperm or egg) allow traits to be combined from two organisms. 2n (46). 2n (46). +. Diploid cells (2n) Gametes (n) . 2n = 46.

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Meiosis

Meiosis. Cell Division for Reproduction. On Inside Front Cover of Meiosis Book: (on Back of Title Page). Meiosis : Cell division that produces gametes (sex cells/sperm & egg). These cells are used for sexual reproduction. They have half the number of chromosomes as the parent cell.

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MEIOSIS

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Flower Dissection

Flower Dissection. Structures divided up. Petals. Leaf. (A) Stamen. Male reproductive structure Composed of an anther and filament Through meiosis, the diploid cells of the anther produce pollen grains that are haploid. (A) Stamen. Pollen. (B) Pistil.

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Meiosis-

Meiosis-. Process that produces haploid gametes from diploid cells Reduces the number of chromosomes to half. Gametes. Reproductive cells Male- sperm cells Female- egg cells (ova). Diploid-. The total number of chromosomes (2N) All non-reproductive cells-

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Intro to Meiosis

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Myxozoa

http://research.amnh.org/users/siddall/myxozoa/myxo.html. Myxozoa. Overview. Comprised of two classes: Myxosporea Actinosporea 1,200 species within the phylum Myxozoa. What are they?

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Meiosis and Mitosis

Meiosis and Mitosis. Carly, Grace, Kellen, Emma. Meiosis. Produces Haploid gametes (sperm and egg cells) Reduced genetic material by half Used in sexual reproduction. Mitosis. Creates diploid cells (not sex cells) Daughter cells are identical to the mother cells Used for growth and repair.

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Meiosis: The reason why we are all unique

Meiosis: The reason why we are all unique. Meiosis occurs in two main phases Meiosis I Meiosis II. Meiosis: The reason why we are all unique. Big Ideas: The number of chromosomes per cell is cut in half from diploid to haploid Crossing over creates new combinations of alleles

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Meiosis

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Sex-Linked Genes

Sex-Linked Genes. Sex-Linked Genes. Female sex chromosomes: XX Male sex chromosomes: XY Sex-linked genes are genes that are carried on the sex chromosomes (specifically the X chromosome) Sex-linked traits are traits that are controlled by the sex-linked genes

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Chapter 8 Section 3 Meiosis

Chapter 8 Section 3 Meiosis. Objectives: List and describe the phases of meiosis. Compare the end products of mitosis with those of meiosis. Explain crossing-over and how it contributes to the products of unique individuals.

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KEY CONCEPT Animals are diverse but share common characteristics.

KEY CONCEPT Animals are diverse but share common characteristics. Animals are the most physically diverse kingdom of organisms. Animals range in size from 25-meter-long blue whales to microscopic rotifers. Animals are found nearly everywhere on Earth.

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