Island populations do NOT exhibit which of the following when compared to the mainland populations from which they are derived?
1. greater variability
2. greater extinction rates
3. fewer heterozygous loci
4. large chance fluctuations in allele frequencies
5. less genetic drift
(I thought it was #3, but got it wrong. if you come up with an answer please explain why. Thanks a bunch!!)
2006-12-03 12:26:59 · 3 answers · asked by wendy h 3 in Science & Mathematics ➔ Biology
The answer is #1 island populations do not display greater variablility and this is why. Island populations usually have smaller population sizes which makes them more prone to genetic drift. Drift causes the fixation of alleles (which makes fewer heterozygous loci) and their generally small population numbers make them more prone to extinction. Genetic drift also provides for large allele frequency fluctuations.
2006-12-03 12:33:58 · answer #1 · answered by mg 3 · 3⤊ 0⤋
yeah he's right it is number 1
2006-12-03 20:36:11 · answer #2 · answered by ? 2 · 0⤊ 0⤋
I think it would be #2.
2006-12-03 20:32:26 · answer #3 · answered by old cat lady 7 · 0⤊ 1⤋