Lessons for Chromosomes

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  • Chromosome Fusion - … Hominid Chromosomes (this, or the Chromosome Connection lesson should precede the Chromosome Fusion lesson). Chromosome Connection (at www.becominghuman.org > Learning Center > Lesson Plans) Chromosomechromosomes. 6. Chromosomes in a karyotype (total chromosome array for a species) are typically oriented with their centromeres above the midpoint of each chromosome … chimpanzee chromosomes that match our chromosome 2, notice (in Fig. 1) that the upper chimp chromosome (we'll call it the "p" chromosome) is …
    User Rating: Grade Level: 9-12
  • Reboops - … 23 chromosomes, the baby will now have 47 chromosomes. A child with Down Syndrome has an extra number 21 chromosome. The extra chromosome can … the chromosome that came from the father, the other on the chromosome given by the mother. Aneuploidy - Having extra or missing chromosomes. Chromosome - A very long piece of DNA coiled around some proteins. Each chromosome
    User Rating: Grade Level: 6-8
  • How Do Organisms Reproduce? - … the same number of chromosomes. Humans have 46 chromosomes. The domestic dog has 78 chromosomes, the domestic cat has 38 chromosomes, and the mouse that it chases has 40 chromosomes! 2 … the cell: chromosome replication occurs, the chromosomes condense, each replicated chromosome pairs with its partner to form a tetrad, the homologous chromosomes swap genes …
    User Rating: Grade Level: K-8
  • Lesson 8: Mitosis: Chromosome Replication & Division - … synthesis , gene , homologous chromosome, interphase , life cycle, metaphase , mitosis , prometaphase , prophase , replicated chromosomes , sister chromatids, spindle fibers, telophase , unreplicated chromosomes . Background Cell Division … called replicated chromosomes (or, in many books, simply chromosomes ). Replicated chromosomes are quite different from the unreplicated chromosomes seen earlier. Compare replicated chromosomes to unreplicated …
    User Rating: Grade Level: K-8
  • Reaching Into Your Genes - … the chromosomes. Nevertheless, there are some instances when large pieces of chromosome are missing (called a deletion) or switched from chromosome to chromosome (called … : Listen for any time chromosomes are mentioned. Look for the shapes of chromosomes. Listen for the number of chromosomes that are in certain … physical relationships among DNA, chromosomes and the nucleus...are chromosomes inside DNA or is DNA inside chromosomes, are the chromosomes inside the nucleus? Observe …
    User Rating: Grade Level: 6-8
  • Evolution Lesson: Comparison of Human and Chimp. Chromosomes - … less on the details of chromosome analysis, and also involves students in doing a chromosome by EXTENSIONS chromosome matching by moving them about … NEW LESSON: CHROMOSOME FUSION. This is a logical extension of any chromosome comparison lab. Students test the hypothesis that our chromosome 2 resulted from the fusion of two shorter chromosomes found in …
    User Rating: Grade Level: 3-5
  • Genetics and Heredity: The Next Generation - … sets of chromosomes, producing gametes (egg or sperm cells) that each have one set of chromosomes. Although only one set of chromosomes is … shape is actually two chromatids (two copies of a chromosome), and that chromosomes only appear this way when undergoing cell division. 2 … called "crossing over," where parts of homologous chromosomes from the grandparents are exchanged before chromosomes divide and move into their respective gametes …
    User Rating: Grade Level: 9-12
  • Karyotype Puzzle - … or missing chromosomes. "You will need to match the chromosomes in your envelope and order them by size. The longest chromosome is called … . The last pair of chromosomes is the sex chromosomes. As you recall, the X chromosome is longer than the Y chromosome. If you need … . Genetic information is written with the number of chromosomes, the sex chromosomes and extra chromosomes listed by number. For example a normal female …
    User Rating: Grade Level: 9-12
  • What's Dominant? - … cells. Twenty-three pairs is the "correct" number of chromosomes. These chromosomes contain all the genetic information needed for the body to … , since the DNA -- therefore the chromosomes -- were not duplicated, each daughter cell receives only 23 chromosomes instead of 23 pairs. So, the … too many or too few chromosomes, does the embryo end up with the wrong number of chromosomes. Body of Lesson: Ask students …
    User Rating: Grade Level: 6-8
  • Chromosome Karyotyping - … cell stage - Interphase (a) Chromosomes indistinct (chromatin)...dancers kneeling (b) Chromosomes unravel (chromosome sides of hats showing) (c) Chromosomes duplicate and gradually coil (1 … chromosome hats. (2) Place centromere on locking hands of each two dancers. 2. Prophase (a) Chromosomes contracted enough to become distinct (b) Chromosomes twist around while constantly contracting 3. Metaphase (a) Chromosomes are fully contracted (b) Chromosomes separate …
    User Rating: Grade Level: 9-12
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