Genetic drift

[Guus]

I could imagine the named 'bottleneck effect' plays a role in this case. Environmental pressure, or the absence of that, may cause a gene-flow over time. it takes time to make genes/alleles to tend to disappear and create homozygous individuals. It takes more time to make the population to lose certain alleles.. The smaller the number of individuals, the faster the process might go.
Interesting stuff though.
Greetings, Guus

[daveyp1970]

I could imagine the named 'bottleneck effect' plays a role in this case. Environmental pressure, or the absence of that, may cause a gene-flow over time. it takes time to make genes/alleles to tend to disappear and create homozygous individuals. It takes more time to make the population to lose certain alleles.. The smaller the number of individuals, the faster the process might go.
Interesting stuff though.
Greetings, Guus

Very interesting stuff!

[Anthony Darby]

It's all in the NCEA year 12/13 curriculum.

[daveyp1970]

It's all in the NCEA year 12/13 curriculum.

Wow i wish i was younger again.Our local Horticultural College has stopped doing all Horticultural courses,what a shame.

[frits.kp]

I didn't know what Genetic drift was until looking up Zoos, Botanical Gardens, and Genetic Drift in my Popular Genetics and Evolution book, fascinating. Oh I can't help, sorry, but just wanted to say thank you for bringing up the subject for me to read.