There would be breeding between all the populations, right? Once the mutation has happened, natural selection would keep the frequency of the dark fur gene higher in the mice living on the lava, and vice versa for the light mice on the sand. The question is: If two of the lava flows in New Mexico were near each other and included spans of rocky outcrops between them, what would be a possible mechanism, other than new mutations, to drive the decrease in the light coat-color gene frequency and the increase in the dark coat-color gene frequency in these rock pocket mouse populations? Explain your answer. Question #5 actually confused us, since we weren’t sure exactly what they were looking for. The Teacher’s handout has the “answers” so you can check your answers (link to HMMI page: ).
#ROCKET POCKET MOUSE ACTIVITY HOW TO#
The answers might seem simple and obvious, but it is about learning how to use the language of biology when discussing selection, fitness, and so on. Jack answered orally, but will be writing most of these down.
There are also some great questions to answer. We filled in the amino acids for the different mice populations we’ll learn lots more about all of this later on in genetics. There’s also a short film that shows two scientists who have been working with these mice in New Mexico for years now – it is only 10 minutes, so well worth watching (direct link: ). There’s a short excerpt from Smithsonian (here’s the link to the entire article: ). First one: Natural Selection and Evolution of Rock Pocket Mouse Populations. We started with the two rock pocket mouse activities. (HMMI Biointeractive activity – analyzing data and answering questions)Ĭolor Variation Over Time in Rock Pocket Mouse Populations (more in same vein – analyzing data and answering questions)Īllele and Phenotype Frequencies in Rock Pocket Mouse Populations – an introduction to Hardy Weinberg What we did/More information Natural Selection and Evolution of Rock Pocket Mouse Populations.
0 kommentar(er)
