PPT-Meiosis Unit 2: Organisms and Evolution

Advanced Higher Biology Miss A Aitken National 5 ReCap Haploid One set of chromosomes 23 All gametes sex cells sperm and egg are haploid Diploid Two sets of chromosomes 46 or 23 pairs. IB Biology. Cell Cycle. Mitosis. Prophase . Metaphase. Anaphase. Telophase. Lung Cancer. Meiosis. Mitosis vs. Meiosis. Crossover . Karyotype. Trisomy. Monosomy. Please take out your science journal and outcomes and turn in any missing work to the WIRE basket. Thank you!. . Asexual Reproduction Review. Happens in almost all cells (Somatic cells). 1 parent cell. Sexual Reproduction. SEXUAL REPRODUCTION. Sex cells formed by meiosis. Requires 2 parents. Offspring not identical. The process that results in the formation of . gametes. Sex cells, egg or sperm, which have . Chapter 10. Overview of Meiosis. 10.1. Overview of Meiosis. Meiosis. - type of nuclear division that reduces the chromosome number from the diploid number to the haploid number.. Gametes. - reproductive cells. Image from about.com . meiosis_metaphase_1.jpg. . Mutations. (changes in an organism’s DNA) are the . original. . source of . all. genetic variation. Mutations create different versions of genes called . 1. Introductory Vocabulary. 2. Heredity. .  . t. he . transmission of traits from one generation to the next . Variation. .  when o. ffspring . differ somewhat from their parents and . siblings. Review of Mitosis. Mitosis is a form of . asexual reproduction. This means that it . only requires 1 organism . (ex. Skin cells dividing). For growth and repair in . somatic. (body) cells!. Results in 2 cells identical to the original (parent) cell. Life Cycles. Overview: Variations on a Theme. Living organisms are distinguished by their ability to reproduce their own kind. Genetics . is the scientific study of heredity and variation. Heredity . Meiosis and Sexual Reproduction Chapter 6 Sexual Reproduction Sexual Reproduction – reproduction that requires two parents and produces offspring that are genetically different from each other and from either parent. Standard: . recognize the significance of meiosis to sexual reproduction. . . [. BIO.6G. ]. describe the stages of the cell cycle, including deoxyribonucleic acid (DNA) replication and mitosis, and the importance of the cell cycle to the growth of organisms. Meiosis is the. . type of . cell division by which . germ cells . (eggs and sperm) . are produced. . One parent cell produces . four . daughter cells. . Daughter cells have half the number of chromosomes found in the parent cell. Learning objective This learning material is about the life cycle of a cell and the series of stages by which genetic materials are duplicated and partitioned to produce two daughter cells with the These phenomena observed in Saccharomyces cerevisiae are highly conserved in eukaryotes, thus rendering yeast, which is easy to use, an essential model organism. Researchers identified and studied fun . The process by which organism change over time. Based on science, not opinion.. Darwin. :. Evolution is descent with modification. Evolution. :. changes through time. Species accumulate difference.