PPT-Mitosis and Meiosis Chromosome:

a single DNA molecule complexed with histone proteins DNA is organized within the nucleus as chromosomes Each chromosome is comprised of subunits called nucleosomes DNA proteins Chromosome numberingnaming. Take out a piece of paper and write for two minutes what makes you unique . . Human. Cat. Shrimp. Bean. Before Meiosis. Chromosome. number (haploid or diploid?. 46. ?. ?. ?. Number of pairs of homologous. Chapter 8. Asexual vs. Sexual reproduction. Asexual reproduction – new organisms/cells are genetically identical to parent cells/organisms . Sexual reproduction – offspring have a combination of genes from both parents. . Mrs. Stewart. Biology I . Stewarts Creek High School. Objectives:. Differentiate between the process of mitosis and meiosis. Demonstrate the movement of chromosomes throughout meiosis. Analyze how meiosis leads to genetic variation. 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. I. Anaphase I. Metaphase I. Prophase I. Cytokinesis. Images from: http://www.phschool.com/science/biology_place/biocoach/meiosis/teloi.html. What happens. here??. What happens. here??. What type of cell am I??. Key Concepts:. What happens during the process of meiosis?. How is meiosis different from mitosis?. Types of . Reproduction. Section 11-4. ASEXUAL. SEXUAL. 1. One Parent. 2. Binary fission (in prokaryotes) or mitosis in (eukaryotes).. 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. Cells Alive- . http://. cellsalive.com/meiosis.htm. . Meiosis animation. http://. www.youtube.com/watch?v=kVMb4Js99tA. . Meiosis Practice Test. Answer the following questions on the back of your review sheet.. R. r. Source: plant-genetics.kais.kyoto-u.ac.jp. ATGGGCACTGCCACT. A chromosome is a single DNA molecule . complexed . with histone proteins. DNA is highly compacted: DNA + histone proteins = . chromatin. Where do you come from?. Sex: . Woman, XX. . Man, XY. Gender: Female Male. . Egg, Ovum Sperm. Fertilization – union of sperm an egg to produce zygote . 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. Alteration of Chromosome Structure. Breakage of a chromosome can lead to four types of changes in chromosome structure:. Deletion . removes a chromosomal segment. Duplication . repeats a segment. Inversion . Nick Richards & Byron Haywood-Alexander. Mitosis/Meiosis. Cell cycle. S. DNA Synthesis. G2. Spindle formation. M. Mitosis. G1. Growth preparation. G0. Quiescence. X. X. Mitosis. Cellular division. 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