Chapter 21, Problem 1
Bioinformatics includes all of the following except a. using computer programs to align DNA sequences. b. using DNA technology to combine DNA from two different sources in a test tube. c. developing computer-based tools for genome analysis. d.using mathematical tools to make sense of biological systems.
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Homeotic genes a. encode transcription factors that control the expression of genes responsible for specific anatomical structures. b. are found only in Drosophila and other arthropods. c. are the only genes that contain the homeobox domain. d. encode proteins that form anatomical structures in the fly.
Two eukaryotic proteins have one domain in common but are otherwise very different. Which of the following processes is most likely to have contributed to this similarity? a. gene duplication b. alternative splicing c. exon shuffling d. random point mutations
Use a highlighter to color any amino acid that varies among the species. (Color that amino acid in all sequences.) a.The C, G, R sequences are identical. Identify which lines correspond to those sequences.