In: Biology
The following table 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.
% Sequence Homology
Species |
Intron I |
Exon I |
Intron VI |
Exon V |
A |
100% |
100% |
100% |
100% |
B |
98% |
99% |
82% |
96% |
C |
98% |
99% |
89% |
96% |
D |
99% |
99% |
92% |
97% |
E |
98% |
99% |
80% |
94% |
Compute the minimum changes for each of the characters and list these below.
Intron I _____________
Exon I _____________
Intron VI _____________
Exon V _____________