#Question id: 5170

#General Aptitude

Which of the following is the largest ?

#Question id: 20302

#Unit 7. System Physiology – Animal

#Question id: 11952

#Unit 7. System Physiology – Animal

Lysine is an essential amino acid for animals. If an animal did not consume lysine in its diet, you might expect that the animal

#Question id: 31168

#Unit 7. System Physiology – Animal

When the excitable cells are incapable of producing normal action potentials, phenomena known as:

#Question id: 8720

#Unit 9. Diversity of Life Forms

The question refers to the following table, which compares the percent sequence homology of four different parts (two introns and two exons) of a gene that is found in five different eukaryotic species. Each part is numbered to indicate its distance from the promoter (for example, Intron I is the one closest to the promoter). The data reported for species A were obtained by comparing DNA from one member of species A to another member of species A.

Which of these four gene parts should allow the construction of the most accurate phylogenetic tree, assuming that this is the only part of the gene that has acted as a reliable molecular clock?