**Understanding Chromosome Mapping and Recombination** This educational image illustrates concepts of genetic recombination using diagrams of chromosomes. It shows four chromosomes: two pairs of homologous chromosomes with genetic markers. ### Chromosome Diagram: - There are two sets of chromosomes depicted, one in green and the other in orange. - **Green Chromosomes:** - Labeled with alleles "F", "f", "G", and "g". - Each homologous pair shows potential recombination points. - **Orange Chromosomes:** - Labeled with alleles "R", "r", "M", and "m". - Like the green pair, they depict recombination points. ### Key Features: - **Chromosomes and Alleles:** - Each chromosome contains different alleles indicating genetic variations. - Characterized by combinations like FF and ff in the green set, RR and rr in the orange set. ### Legend and Options: - **Legend Explained:** - Possible genotype of resulting gamete - Possible recombinant chromatid genotype - Most likely to be separated by crossing over - Smallest crossover frequency - Single dominant allele - Single recessive allele - **Dropdown Menu Choices:** - Options displayed include possible genotypes and recombinants such as rM, f, FGrm, and others. - Selection of these options helps determine genetic outcomes and frequencies. This diagram helps students understand how crossing over during meiosis can lead to genetic recombination and variation in gametes. The image displays two pairs of chromosomes, where the letters on each chromatid represent different genes. The left pair of chromosomes is green and consists of: - Two chromatids with the gene sequence "F F g g" - Two chromatids with the gene sequence "f f G G" The right pair of chromosomes is brown and consists of: - Two chromatids with the gene sequence "R R M M" - Two chromatids with the gene sequence "r r m m" Below the chromosomes, there are dropdown menus labeled "Possible genotype of resulting gamete" and "Possible recombinant chromatid." This image is likely used to illustrate genetic recombination concepts, such as crossing over and independent assortment, during meiosis.