Use the Following to Answer Questions

question 137

Essay

Use the following to answer questions :
Suppose that sequences were obtained from a hypothetical gene in three species of Drosophila: (a) is the sequence from D. melanogaster, (b) is from D. simulans, and (c) is from D. erecta.
(a) AGGCTTGTAGCTGTGCTCGCCGCTAGTCGG
(b) AGGCTTGTAGCTGTGCTCGCCGCTAGTAGG
(c) AGGGTAGCTGTGCTCACCGCTCGTCGG
-How would you align the three sequences so that they could be used for making comparisons?

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Definitions:

Cementum

A specialized calcified substance covering the root of a tooth.

Crown

The part of a tooth that is visible above the gum line, or the top portion of a dental implant that replaces the natural tooth.

Mesenteries

Folds of peritoneum that attach the intestines to the posterior abdominal wall, providing support and housing blood vessels, nerves, and lymphatic vessels.

Serosal Lining

A smooth membrane consisting of a layer of cells which secrete serous fluid, covering internal organs and cavities.