A.migration
B.mutation
C.genetic drift
D.genetic recombination
2007-02-12 04:59:50 · 5 answers · asked by bekkers14392 1 in Science & Mathematics ➔ Biology
C. genetic drift.
When there is a small population, random chance has a stronger effect on the frequencies of genes. eg. a completely random event could kill off the few carriers of a certain gene.
2007-02-12 05:12:06 · answer #1 · answered by Anonymous · 11⤊ 0⤋
When the individuals in a population are not all the same, then a change in the environment may kill off some of them but not all of them. Some individuals may have just the right combination of traits that will let them survive. I always remember a party with about 20 teachers in attendance. All 20 teachers ate the dessert at the party, and 19 of them had such terrible food poisoning that they couldn't go to school the next day. And teacher number 20? No effect at all. She went to school the next day and wondered where everyone was ... and, yes, she ate the dessert. So she had some variation that protected her from the food poisoning. That wasn't a situation that killed anyone, but it gives you the general idea.
2016-05-24 01:10:56 · answer #2 · answered by Anonymous · 0⤊ 0⤋
C. Genetic drift, is the best answer to this question.
2007-02-12 05:45:39 · answer #3 · answered by Anonymous · 3⤊ 0⤋
It is either genetic drift or migration. Use process of elimination from there.
2007-02-12 05:08:02 · answer #4 · answered by JB 2 · 0⤊ 2⤋
i think its D...
2007-02-12 05:08:54 · answer #5 · answered by doingitright44 6 · 0⤊ 5⤋