Presentation on theme: "I. What are the 5 conditions that must remain constant for a population to be in evolutionary equilibrium? (try to name at least 4 of them) POP QUIZ !"— Presentation transcript:
I. What are the 5 conditions that must remain constant for a population to be in evolutionary equilibrium? (try to name at least 4 of them) POP QUIZ !
In this species, yellow (120) is dominant to blue (80).
Using this population of butterflies and the Hardy- Weinberg law: 1.Calculate p and q for this population. 2. What do p and q represent? 3. Describe the probable genotypic ratios of this population. (what are the frequencies of each of the following genotypes: BB, Bb and bb.) 4.How many of the yellow butterflies are most likely BB and how many are Bb? 5. Why is this information important to evolutionary biologists? In this species, yellow is dominant to blue. 120 yellow, 80 blue
6. If a scientist returns to this population each year and observes that the population continually has the same frequencies of p & q, what is most likely occurring (or not occurring) in this population? 7. Why?
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