Comparative Genomics as Biochemical Evidence Flashcards
1
Q
What is comparative genomics?
A
Is the comparison of genome sequences of different species.
2
Q
How are new genes gained?
A
Mutations.
3
Q
How are new genes lost?
A
Natural selection and genetic drift.
4
Q
How can DNA be used as evidence?
A
- The more similarities in the DNA code between two species, the more closely related they are.
- The more differences in the DNA code between two species, the more distantly related they are.
5
Q
What other sections of DNA can be used as a source of comparison?
A
Non-coding regions called Junk DNA.
6
Q
Does junk DNA have a function?
A
No.
