Question

Which statement is correct about mutations?

Mutations usually have positive effects on individuals.
Mutations never decrease fitness.
Mutations are never expressed in the phenotype.
Mutations are errors in the DNA sequencing machinery.
Mutations occur through inheritance.

Answer 1

both d and e are correct

Answer 2

hm.

Answer 3

which one would be better?

Answer 4

i would say D because sometimes you can inherit it.

Answer 5

ok thanks :)