click below
click below
Normal Size Small Size show me how
Hardy-Weinberg LAB
| Question | Answer |
|---|---|
| Which forces of evolution are random? | Drift and Mutation |
| Which forces of evolution are non-random? | Natural selection, non random mating, and migration. |
| Evoultion is possible because of what? | Variation |
| What are variable characteristics? | characteristics that are the same or similar |
| What is a gene pool? | genetic make-up of a population |
| What are allele frequencies? | the porportion of alleles that are B and b |
| what are genotype frequencies? | portion of the different type of allele combinations- BB, Bb, bb |
| What is microevolution? | change in genetic make up of a population from one generation to the next. |
| What is the Hardy-Weinberg principle? | how allele and genotype frequencies are expected to change within populations. |
| Why is Hardy-Weinberg used? | To see if a population is evolving. |
| What are the Hardy-Weinberg conditions? | 1. No mutations. 2.No selection 3.No Drift (population is large enough) 4.No gene flow 5.There is random mating going on. |
| What is the domninant allele in Hardy equation? | p |
| What is the recessive allele in Hardy equation? | q |
| What is AA? | homozygous dominant |
| What is Aa? | heteroqygous |
| A population that meets Hardy assumptions is? | In evolutionary stasis |
| In Hardy-Weinberg conditions, which is the hardest to meet? | natural selection, because our environment is constantly changing. |
| If a beetle is brown and white what kind of dominance is this? | co-dominance |
| If there is a population of 200 which Hardy condition is hardest to meet? | Drift, because its such a small population |
| Evoultion | changes in characteristics of a population over the course of generations |
| Adaptations | traits that increase the chance of survival or reproduction |
| Adaptive alleles become more what? | Common |
| Non adaptive alleles become more what? | uncommon |
| What causes a difference between an original population and an island population? | The founder effect. |
| Can individuals evolve? | No. Populations only becuase it takes more than one individual to reproduce. |
| What is the unit that evolves? | Population |
| Are wild populations in Hardy-Weinberg equilibrium? | No. You violate a condition easily. |
| What does natural selection act upon? | phenotype |
| Is natural selection random or non random? | Non random |
| Does natural selection lead to perfection? | No. Environment is constantly changing. |
| What is the bottle neck effect? | random changes in gene frequencies to form a reduction in the population. |