Stalk-Eyed Flies Are So Named Because Their Eyes Are Situated

question 22

Essay

Stalk-eyed flies are so named because their eyes are situated at the end of long stalks extending away from their head. Stalk length is a quantitative trait that is variable in populations. Describe the steps you would need to take in order to find quantitative trait loci linked to differences in eye stalk length.

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Definitions:

Connective Tissue Cells

Cells that form the structural framework and support for organs and the body as a whole, such as fibroblasts, adipocytes, and chondrocytes.

Clot Dissolution

A process by which a blood clot (thrombus) is broken down, often through enzymatic activity, restoring normal blood flow.

Serum

The liquid part of blood that remains after blood has clotted, free of cells and clotting factors, but containing antibodies and other proteins.

Aspirin

A medication used to reduce pain, fever, inflammation, and, in low doses, to prevent blood clots by inhibiting the production of certain natural substances that cause fever, pain, swelling, and blood clots.