Dis8_Recombination+DNA+RNA+Protein - Recombination and...

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Recombination and DNA/RNA/Protein RECOMBINATION. Read the problem below taken from your textbook: Two genes of a flower, one controlling blue (B) versus white (b) petals and the other  controlling round (R) versus oval (r) stamens, are linked and are 10 map units apart. You  cross a homozygous blue-oval plant with a homozygous white-round plant. The resulting F1  progeny are crossed with homozygous white-oval plants, and 1,000 F2 progeny are  obtained. How many F2 plants of each of the four phenotypes do you expect? Do you know how to approach this problem? We will tackle it step-by-step. Step #1. What are the genotypes of the plants in the original cross? Step #2. How would you draw the chromosomes knowing that these two genes are  linked? Step #3. Would crossing over create new combinations of alleles in the gametes from  these plants? Explain why or why not.
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Dis8_Recombination+DNA+RNA+Protein - Recombination and...

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