PPT-YARN MODEL OF DNA/GENES/CHROMOSOMES

The yarn represents DNA DNA is a tiny long thin chemical How does the yarn resemble DNA If we looked closely at the DNA inside each of your cells it would look like a twisted ladder . Camp Sunshine. July 22, 2013. Diamond . Blackfan. Anemia . Foundation. Diamond . Blackfan. Anemia Canada. THE FUNDAMENTALS. Humans have 46 chromosomes in each cell: 23 pairs. Sperm and egg cells have 23 chromosomes, 1 of each pair.. EQ:. What is the importance of meiosis in providing genetic variation?. . SPECIALIZED CELLS. You have many specialized cells in your body that can be divided into two groups. . 1. . . SOMATIC. = body cells; make up most of your . 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. Another way to have a [healthy] baby!. What are genes?. Genes are made up of DNA. Genes carry in the information for cells to make a specific part of what makes you, you!. There are genes for making your skin, your hair, your heart, etc…. . Humans have approximately . 20,000 – 30,000. genes that code for traits. . However, only have . 46 chromosomes. . Thus each chromosome must have . many genes. on them. . Often seen in . Sex-Linked Traits. and Genes. How are they related?. http://commons.wikimedia.org/wiki/File:Chromosome.gif. DNA. Chromosomes. Genes. http://commons.wikimedia.org/wiki/File:Chromosome.gif. ?. DNA. Chromosomes. Genes. Cell. Discuss backpacking project. Create genetics table of contents. Discuss essential question. Begin DNA and base pairing. Warm-Up: Make predictions in . yout. notebook. What does DNA stand for?. What is DNA made up of?. Horizontal to Vertical Seams Yarn for Seaming Use same yarn as used for item unless you’ve used: Novelty yarn Mohair Nubby or bumpy yarn When substituting another yarn: Match color and washability Human Genes and Chromosomes. Chromosomes 21 and 22 are the smallest human autosomes. Chromosome 22 has about 43 million DNA base pairs. Chromosome 21 has about 32 million base pairs. . Chromosome 22 has about 545 different genes. Genetic disorders tat occur on chromosome 22 are leukemia and neurofibromatosis (a tumor causing disease). There is also a long stretch of repeating DNA that does not code for proteins. . 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 . Split . genes: Exons and introns. Chromatin structure and . states: Epigenetics. 12/21/14. 1. Classification by +/- nucleus. Prokaryotes: Organisms whose cells lack a nucleus. Bacteria and . Archaea. 2n 2n Meiosis 2. How many DNA molecules are present in a chromosome of a cell in metaphase of mitosis? How many DNA molecules are present in a chromosome of a cell at metaphase II Problems arose however regarding the following question:. Why are the number of alleles which undergo independent assortment greater than the number of chromosomes of an organism?. This was . explained by the .