Physics Lab Answers

[ 8.1 ] Will the allele frequencies in the pens tend to move toward the frequency in the larger field population?

 The allele will increase or decrease frequencies in the pens tend to move toward the frequency in the larger field population. But the allele has greater chance to increase.

[ 8.2 ] Will the frequencies in the pens tend to move toward 0.5? 0.25? 0.75?

 the frequencies in the pens tend to move toward 0.5.

Ex 1 [8.3] Will the frequencies all do the same thing, or will something different happen in each one?

 The frequencies stay constant.

[ 8.2 ] You should begin to see a general pattern. Describe what happens to the frequency of S among the zygotes, as it compares the frequency in the gene pool, as the number of zygotes made

increases.
 The frequency of S become constant 0.5 same as gene pool.

Ex 2 [11.1] Summarize your observations on the relationship between the frequency of an allele in the gene pool, the frequency of the same allele among the zygotes, and the number of zygotes made.

 The frequency of an allele can reach to the frequency of an allele in the gene pool. The number of the zygotes and the frequency of the allel will approach each other.

Ex 3 [3.2] What is the general relationship between population size and how rapidly the allele frequencies change over time?

 The allele frequency change over time opposite mean if population getting bigger the allele frequence will change slowly.

Ex 3 [3.4] Explain the relationship between population size and the rate of evolution by drift in terms of what you learned about sampling error and sample size in the previous two exercises.

 The relation of the rate of evolution by draft and the population is imbalance means the evolution increase if the population becomes smaller.

Ex 3 [3.5] Why does something unique happen in every population and every run? Explain in terms of what you have learned about genetic drift.

 Because of genetic draft in every population and every run something

happen.

Ex 3 [4.2] What is the general relationship between the starting frequency of an allele and the probability that it will drift to fixation versus loss?
 The starting frequency is the most important here cause smaller frequenct alwayswill be loss and bigger will be fixed.
Ex 4 [5.3] Which kind of population retains heterozygosity longer: a large one or a small one?
 Both of the population become heterozygosite.
E x 4 [6.1] How well does Wright’s equation match your simulation results, where the census population size is 200?
 Just equal.
Ex 4 [10.1] How does restricting the randomness of mating change the rate at which populations lose heterozygosity to drift?

Heterozygosity level is lower in the population with a higher frequency than is expected. This is because the change of CC individual's to mate now have a higher chance than before because mating is based on being near someone.
Ex 4 [15.1] How does an unbalanced sex ratio influence the effective population size?
 an unbalanced sex ratio decrease the effective population size