'Haploid daughter cells' diaporamas de présentation

Reproductive System

Reproductive System. Primary sex organs _______________________________in males _______________________________in females Gonads produce sex cells called _ secrete . Reproductive System. Accessory reproductive organs ducts, glands, and external genitalia Sex hormones

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Genetics

Genetics. Topic 4 and 10. Why sex????. http://www.pbs.org/wgbh/nova/miracle/program.html. Chromosomes. Chromosomes are composed of DNA and protein (histone) Each body cell, called a somatic cell , is composed of 46 chromosomes (23 pairs).

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Chapter 28 Reproductive System

Chapter 28 Reproductive System. Albert Grazia, M.S., N.D. (516) 486-8332 www.naturedoc.info. Chapter 28 The Reproductive Systems. Sexual reproduction produces new individuals germ cells called gametes (sperm & 2nd oocyte)

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Jeopardy! Inheritance Chpts 8 and 9

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Section 1: Meiosis

Chapter 10 Sexual Reproduction . and Genetics. Section 1: Meiosis. Section 2: Mendelian Genetics. Section 3: Gene Linkage and Polyploidy. Sexual Reproduction and Genetics. Chapter 10. 10.1 Meiosis. Chromosomes and Chromosome Number. Human body cells have 46 chromosomes.

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Chapter 9

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Meiosis and genetic variation

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Heredity-transmission of traits from 1 generation to the next Genetics-study of heredity & variation Genes-segments

Heredity-transmission of traits from 1 generation to the next Genetics-study of heredity & variation Genes-segments of DNA Gemetes-reproductive cells (sperm, egg) These are haploid (n) Somatic cells-body cells-diploid (2n). Fusion of gametes = zygote

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Ch 46: Animal Reproduction

Ch 46: Animal Reproduction. ?ASEXUAL REPRODUCTION:. 1 parent mitotic cell division examples : binary fission, budding, fragmentation/regeneration. ? SEXUAL REPRODUCTION:. Fusion of 2 haploid gametes to form a zygote

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Chapter 11: Introduction to Genetics

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Meiosis

Meiosis. Chapter 13: Meiosis and Sexual Life Cycles. Variation. Living organisms are distinguished by their ability to reproduce their own kind Genetics is the scientific study of heredity and variation Heredity is the transmission of traits from one generation to the next

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Meiosis

Meiosis. Why Do cells Go through Meiosis?. Cells go through Meiosis in order to make Sex Cells Sex cells are also called Gametes Four Daughter Cells are created Haploid (1N). Interphase. Cell Grows Duplicates DNA Cell Prepares to divide. After Interphase.

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Chapter 10 Sexual Reproduction & Genetics

Chapter 10 Sexual Reproduction & Genetics. Part 1: Meiosis. Concepts for Review. Chromatin is the relaxed form of DNA Chromosome is the coiled form of DNA Sister chromatids are identical copies of DNA (after S-phase/replication). Key Terms .

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Chapter 8: Cell Reproduction

Chapter 8: Cell Reproduction. Review. Organelles Centrioles Made of microtubules Acts as anchors in cell division Mitotic Spindle fibers Two Main types Kinetochore Fibers- Attach from centriole to centromere of chromosomes and assists in movement of chromosomes

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Meiosis and Sexual Reproduction

Meiosis and Sexual Reproduction. Asexual Reproduction . sexual. A. = not. A form of reproduction that: Is non-sexual (only single parent is needed) p roduces genetically identical clones of the parent ( exact copy of the original ). Asexual Reproduction. Characteristics: Rapid

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1. Meiosis and chromosome number Steps in meiosis Source of genetic variation Independent alignment of homologues b. R

1. Meiosis and chromosome number Steps in meiosis Source of genetic variation Independent alignment of homologues b. Recombination. Somatic cells are diploid. Gametes are haploid, with only one set of chromosomes. Meiosis reduces the number of genomes from diploid to haploid.

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Summary of chromosome characteristics

Summary of chromosome characteristics. Diploid set for humans; 2n = 46 Autosomes; homologous chromosomes, one from each parent (humans = 22 sets of 2) Sex chromosomes (humans have 1 set of 2) Female-sex chromosomes are homologous (XX) Male-sex chromosomes are non-homologous (XY) .

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Mitosis, Meiosis and Reproduction

Mitosis, Meiosis and Reproduction. The Cell Cycle. Interphase Mitosis Prophase Metaphase Anaphase Telophase Cytokinesis. The Cell Cycle.

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Meiosis Review

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Meiosis

Meiosis. Chapter 11-4. The Basics. Genes are located on the chromosomes. Each organism must inherit one copy of every gene from both parents. Each organism has 2 complete sets of genes. Those two sets must be separated so that each gamete produced contains just one set of genes.

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