PPT-CHROMOSOME Chromatid- the strand of a chromosome that becomes visible during meiosis or

Chromatin the less tightly coiled DNAprotein complex Centromere the region of the chromosome that holds the two sister chromatids together during mitosis SEX CHROMOSOMES amp AUTOSOMES Sex chromosomes are chromosomes that determine the sex of an organism and they may also carry genes for other characteristics . . Distributing . genetic information. How?. Why?. Lab 7. Windows on the gene: eyes. Find a brown- and a blue-eyed person. Look deep into their eyes & try to figure out the difference. What does it mean genetically when we say ‘brown eyes are . 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. Chromatin . Chromatid. Centromere. Histones. Replicated Chromosome. Mitosis occurs in 4 steps:. Prophase. Metaphase. Anaphase. Telophase. Stages of Mitosis . (first part of M phase). http://www.youtube.com/watch?v=VlN7K1-9QB0. 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 numbering/naming. 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 . http://slideplayer.com/slide/5286365/. Frayer. model. Quiz, answer sheets, amoeba sister video and . answer sheet. Warm Up. Chromosome Review:. Meiosis. In meiosis gametes or sex cells (egg and sperm) are made .. 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 . Gametes have half the number of chromosomes that body cells have.. You have body cells and gametes. . Body cells are also called somatic cells.. Germ cells develop into gametes.. Germ cells are located in the ovaries and testes.. 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. What is reproduction. ?. Anticipatory Set. Please meet:. Petero. (from Uganda). a. nd. Kenadie. !!!. What do they have in common??. Crouzon. Syndrome. genetic disorder, skull bones fuse, 1-25,000 are affected. . Human. Cat. Shrimp. Bean. Before Meiosis. Chromosome. number (haploid or diploid?. 46. ?. ?. ?. Number of pairs of homologous. chromosomes. 23. ?. 127. ?. After Meiosis I. Chromosome number (haploid or diploid?). Abbas . Eleiwe. Embrylogy-L1. Embryology focus on essential events to understand principles of embryogenesis that can be used to . diagnose, care, & prevent. . birth defects. . . . germ cells. 1. MEIOSIS AND SEXUAL LIFE . CYCLES. Heredity. = Continuity of biological traits from one generation to the . next. Variation. = Inherited differences among individuals of the same . species. Genetics.