Before mutations can affect a population they must be:

a) permanent
b) beneficial
c) inheritable
d) all of the above

2 answers

Good grief! Didn't you understand bobpursley's answer?

http://www.jiskha.com/display.cgi?id=1219367917

If you don't understand the meanings of the words in your choices, for heaven's sakes, look them up in a dictionary!
Good grief!! Is it necessary to be so rude and insulting of someone's intelligence? I'm aware that you obviously have a better education and/or understanding of this than I do.
This is the first time I've used this Homework Help. Forgive me for not knowing that I should post what my thoughts were as to the correct answer.
I just needed to know that I was on the right track with my thoughts.
And not that I feel that you care, but at the time that I posted my question, I had spent the entire day at the hospital with the only parent I have left. So yes, all my brain cells were not exactly working in harmony and
at the time, I did not understand bobpursley's answer! Thanks anyway and Have a great day!!