BSC 2011C Lecture 6: Chapter 51- Animal Behavior

In Drosophila, allelic series of gene w+ determine the color of an eye. w+ determines red color (wild type), w^e determines eosin color and w^a – apricot color. The allelic realtions are w+ > w^e > w^a > w. The gene is sex-linked.

A female fly with eosin eyes was crossed with a male fly with apricot eyes. Write down the cross showing the genotypes for P. F1, F2 and a ratio observed in F2.

8. Which of the options below indicates the correct decreasing density of packing DNA?

a. DNA > Chromatin > Nucleosome > Chromosome b. DNA > Chromatin > Chromosome > Nucleosome c. DNA > Nucleosome > Chromatin > Chromosome d. Chromosome > Chromatin > Nucleosome > DNA e. Chromatin > Chromosome > Nucleosome > DNA
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Which mutation would be MOST likely to result in amyloid formation?