Question

The three steps below outline the process of allopatric speciation
Step 1: A randomly mating population is separated into two for a number of generations.
Step 2: Genetic differences accumulate between the two populations
Step 3: Reproductive isolation evolves
3a) Give three mechanisms that can explain the accumulation of genetic differences in Step 2

MY ANSWER WOULD BE:

1) Environmental differences (not sure about this)
2) Crossing over
3)Mutations

Would it be correct?

Answer 1

@anonymous_user

Answer 2

@deepika.comet

Answer 3

hello...

Answer 4

hi:)

Answer 5

environment has no change on genes

Answer 6

I knew it: ( But I can't remember which can also have a change on genes. Recombination? (But it is the same as crossing over, isnt it?)

Answer 7

linkage

Answer 8

Genetic linkage?

Answer 9

could you explain more, how it is relative? Because I know genetic linkage is that genes are more likely to be inherited together if they are close to each other?

Answer 10

@Abhisar hey could you please have a look?

Answer 11

no more ideas?

Answer 12

@aaronq maybe you can have a look? I know enviromental differences is not the correct answer

Answer 13

hm i dont know. doesnt "allopatric" mean different location - as in, separated by a geographical/topographical boundary?

Answer 14

yes, it does.

Answer 15

This is really not my area lol .. what about things like sexual selection, or genetic drift?

Answer 16

maybe one of those,then : }} Thanks!

Answer 17

by the way, in which fields of Biology do you specialise?

Answer 18

No problem! I'm well versed in cellular/molecular biology, metabolism, genetics - my major is biological chemistry.