Question

part two: the cytochrome c gene
examine differences in the gene that codes for cytochrome c among several mammals. count how many dna bases are different between 2 organisms. record your data below.
data table 2: differences in the cytochrome c gene among organisms
beginning portion of cytochrome c gene
chimpanzee t a c a t a t g c t c g g a a t c g t g t c c a a c t c a c
platypus t t c t g a t c c g c g g a g t c g t g t c t a t c a t t g
monkey t t c a t a t c c t c g g a a t c g t g t c c a a c t c a c
human t a c a t a t g c t c g g a a t c g t g t c c a a c t c a c
fruit bat t t c a t a t c c t c g g a g t c g t g t c t a t c t c a a
differences from a chimpanzee differences from a platypus differences from a monkey differences from a human
chimpanzee ---------- ---------- ---------- ----------
platypus ---------- ---------- ----------
monkey ---------- ----------
human ----------
fruit bat

Explanation:

Step1: Compare Chimp vs Platypus

Count differing bases: 10

Step2: Compare Chimp vs Monkey

Count differing bases: 2

Step3: Compare Chimp vs Human

Count differing bases: 0

Step4: Compare Chimp vs Fruit Bat

Count differing bases: 3

Step5: Compare Platypus vs Monkey

Count differing bases: 12

Step6: Compare Platypus vs Human

Count differing bases: 10

Step7: Compare Platypus vs Fruit Bat

Count differing bases: 9

Step8: Compare Monkey vs Human

Count differing bases: 2

Step9: Compare Monkey vs Fruit Bat

Count differing bases: 5

Step10: Compare Human vs Fruit Bat

Count differing bases: 3

Answer:

	Differences from a Chimpanzee	Differences from a Platypus	Differences from a Monkey	Differences from a Human
Platypus	10	-----------	12	10
Monkey	2	12	-----------	2
Human	0	10	2	-----------
Fruit Bat	3	9	5	3