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- Grade Range
- 9th - 12th
- Rating
Students read about the X and Y chromosomes in humans and complete a worksheet. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students demonstrate a microtechnique for reliable chromosomal analysis of leucocytes obtained from peripheral blood. Full Review »
- Grade Range
- 7th - 12th
- Rating
Students compare three sets of unlabeled human chromosomes and gather related data, trace chromosomes to pair them, and make observations about them. Full Review »
- Grade Range
- 7th
- Rating
Students take a survey to determine their attitudes toward sexuality. In groups, they identify female and male reproductive organs and develop a list of secondary sex traits during puberty. They also discuss the stages of the menstrual cycle and how the fetus develops. To end the lesson, they discuss how to prevent sexually transmitted diseases. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students comprehend that karyotyping is a process in which chromosomes are cut from an enlarged picture and arranged in decreasing order of size. The cells to be viewed are first chemically treated to increase the number of dividing white blood cells and then treated with colchicines to stop mitotic division during anaphase. Lastly, the cells are burst open, stained and fixed. The slide is examined for well spread chromosomes, photographed, and karyotyped. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students are introduced to mapping by crossover frequency. Genes travel as packaged trains on chromosomes. They use this experiment, genetic mapping assignment, that allow students to quickly complete the assignment and yet examine the concepts of a simple map. Full Review »
- Grade Range
- 10th - 12th
- Rating
Students create models of chromosomes using clay, coins, beads, or marbles. They complete a worksheet regarding their crossover frequencies they created with their chromosomes and gene models. They read an essay on sex chromosomes and answer the accompanying questions. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students identify chromosome pairs based upon band patterns and location of centromere. They order chromosome pairs based upon size. Students differentiate normal karyotypes from abnormal karyotypes. They correctly record karyotype information using correct notation. Full Review »
- Grade Range
- 9th - 10th
- Rating
Students read section 2-3 over the Cell Cycle and Mitosis, they fill out their Mitosis notes. They list the sex chromosomes of a normal female, and list the sex chromosomes of a normal male. Students describe chromatids, centromere, chromosomes, and homologous chromosomes. Full Review »
- Grade Range
- 9th - 10th
- Rating
Students explain the role of sex chromosomes in sex determination and how sex linkage affects the inheritance of traits. They explain the effect of crossing-over on the inheritance of genes in linkage and summarize the procedure involved in constructing a chromosome map. Finally, students distinguish between chromosome mutations and gene mutations. Full Review »
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