PPT-Y Chromosomes

in Chimps and Humans are Horrendously Different Paul Giem Loma Linda CA Y Chromosomes in Chimps and Humans The common chimp Pan troglodytes and human Y chromosomes are horrendously different from each other says David Page of the Whitehead Institute for Biomedical Research in Cambridge Massachusetts. Section 6.1. 1. Objectives. SWBAT differentiate between body cells and gametes.. SWBAT compare and contrast autosomes and sex chromosomes.. 2. Vocabulary. Somatic cell. Gamete . Homologous chromosome. Mitosis vs. Meiosis . Mitosis. One division. 2 diploid daughter cells. Identical to parent cell. Mitosis. Two divisions. 4. haploid daughter cells. Genetically different from. parent cell. http://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter28/animation__how_meiosis_works.html. Chromosome theory of inheritance. Genes located on chromosomes = gene locus. Thomas Hunt Morgan, Columbia Univ. “Fly room”. Drosophila. 100s of offspring. 2n = 8. 3 . prs. autosomes. X and Y sex chromosomes. Essential idea: Chromosomes carry genes in a linear sequence that is shared by members of a species.. The . asian. rice (. Oryza. sativa. ) genome can be seen illustrated . above. . Rice possesses up 63,000 genes divided up between 12 chromosomes. Karyotypes. To find what makes us uniquely human, we have to explore the human genome. . A . genome. is the full set of genetic information that an organism carries in its DNA.. A study of any genome starts with chromosomes, the bundles of DNA and protein found in the nuclei of eukaryotic cells. . Chromosomes carry genes in a linear sequence that is shared by members of a species.. Understandings:. Prokaryotes have one chromosome consisting of a circular DNA molecule. . Some prokaryotes also have plasmids but eukaryotes do not. .. The Chromosome Theory of Heredity. Mutations. Regulation of Gene Expression. Objectives. State the chromosome theory of heredity. Explain how gene linkage affects inherited traits. Describe the process of crossing-over and explain how it increases genetic variety. GENES. DNA. DNA. :  the chemical inside the nucleus of a cell that carries the genetic instructions for making living organisms. . The material inside the nucleus of cells that carries genetic information.. diploid. Sex cells (gametes/germ cells) have only one set of chromosomes . . = . haploid. . That means when fertilization . occurs, the new individual will. have the correct number of chromosomes.. Chromosomes carry genetic information. Chromosomes are wound up DNA. Diploid – Every body cell has 2 sets of chromosomes . n = number of chromosomes. Normal body cells have 2n (2 x n) chromosomes. Human Inheritance. Disorders caused by individual genes - dominant. Individuals with the disorder only need 1 allele to have the disorder. Huntington’s Disease. Caused by a repeat of the sequence CAG . Chromosomal Disorders. Chromosome abnormalities occur as a result of chromosome . mutations. brought on by . mutagens. (like radiation) or problems that occur during cell division.. . The defects are classified as abnormalities of . Ms. Diana and Ms. Su’ad. Karyotype Studies. The study of genetic material does not only involve the study of genes. It also involves whole chromosomes by using images of chromosomes stained during metaphase. . Fusion DNAreplicationAcentricfragment Dicentric Chromosome Formation Dicentricchromosome Radiationexposure Centromere Scoring Dicentrics with New Technologies 80 Slide Feeder Digital Camera and Image