The Galapagos finches were an important clue to Darwin's thinking about the origin of species. These finches are believed to have descended from a single ancestral species that colonized the Galapagos archipelago, America, over a short period of time. The Galapagos finches differ in their beak shape and size. Different species feed on seeds that vary in size and hardness. Which of the following is the most likely explanation for these patterns?

#Question id: 5199

#Unit 9. Evolution & Diversity of Life Forms

For mapping studies of genomes, most of which were far along before 2000, the 3 -stage method was often used. Which is the usual order in which the stages were performed, assuming some overlap of the three?

#Question id: 5200

#Unit 9. Evolution & Diversity of Life Forms

What is the difference between a linkage map and a physical map?

#Question id: 5201

#Unit 9. Evolution & Diversity of Life Forms

How is a physical map of the genome of an organism achieved?

#Question id: 5202

#Unit 9. Evolution & Diversity of Life Forms

Which of the following most correctly describes a shotgun technique for sequencing a genome?

#Question id: 5203

#Unit 9. Evolution & Diversity of Life Forms

The biggest problem with the shotgun technique is its tendency to underestimate the size of the genome. Which of the following might best account for this?

#Question id: 5204

#Unit 9. Evolution & Diversity of Life Forms

Bioinformatics can be used to scan sequences for probable genes looking for start and stop sites for transcription and for translation, for probable splice sites, and for sequences known to be found in other known genes. Such sequences containing these elements are called