Question

In: Biology

1. With mutation set to 0, migration set to 0, all genotypes with equal fitness, and...

1. With mutation set to 0, migration set to 0, all genotypes with equal fitness, and assortative mating set to 0, what would you expect to happen and why?

a. allele frequencies should change dramatically, because microevolution is occurring

b. new alleles will be entering the population, which will change allele frequencies

c. some phenotypes are more adaptive than others, so they will increase in frequency over generations

d. allele frequencies should stay about the same, because microevolution is not occurring

2. When you changed the Genotype Relative fitness settings from

rr 1 Rr 1 RR 1 to

rr 0.5 Rr 0.5 RR 1,

What should you predict will happen over generations?

a. R and r will maintain the same frequencies

b. mutation will lead to a new allele

c. r will become more common and R less common

d. R will become more common and r less common

3. Did the koi simulation simulate microevolution or macroevolution and why?

a. both: it's at the population level which is larger than an organism and smaller than a species

b. neither: it wasn't evolution because there were no new animals evolving

c. macroevolution: it was all about new species descending from shared common ancestors

d. microevolution: it was all about allele frequencies changing in populations

This is the koi fish pond simulator

Expert Solution

1.b) New alleles will be entering the population, which will change allele frequencies. Mutation set to 0, migration set to 0, all genotypes with equal fitness, and assortative mating set to 0 is a Hardy– Weinberg assumption state that in the absence of evolutionary influences ,the allele and genotype frequency remain constant generation to genaeration.If new alleles will be entering the population, which will change the allele frequencies is a deviation of Hardy– Weinberg assumption.

2).R will become more common and r less common. It should be obvious that RR has the highest fitness, so the population will eventually fix for the R allele (and r will be discarded ). Relative fitness is used very frequently the most fit genotype (RR) has a fitness of 1 as being relative fitness.

3.d) microevolution: it was all about allele frequencies changing in populations.Evolutionary changes are low and do not lead to the production of a new species. When populations alter in small ways over time, the procedure is called microevolution. Microevolution changes within a species

gladiator answered 1 year ago

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