Question

How do biologists use cross over frequencies to map genes on chromosome ?​

Answer 1

Answer:

that are close together on a chromosome, are less likely to be separated. The analysis of how often the traits appear together, helps to establish linkage map, which shows the relative positions of genes on chromosomes

Answer 2

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Step 1: Start with the genes that are the farthest apart first: B and C are 45 map units apart and would be placed far apart. Step 2: Solve it like a puzzle, using a pencil to determine the positions of the other genes. Step 3: Subtraction will be necessary to determine the final distances between each gene.

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