If no evolution is occurring at the locus, what should be the sum total of the p

Question

If no evolution is occurring at the locus, what should be the sum total of the p and q alleles? QUESTION 5 If the frequency of the dominant allele A in a population of 145 individuals is 59, how many individuals should have the AA genotype f the population is in Hardy-Weinberg equilibrium? 102 60 50 26 QUESTION 6 imagine if we tested genotype frequencies in our hypothetical population of 145 individuals where p=.59 and 9,41 and found the following to be true of the population: 35 individuals had the AA genotype, 100 had the Aa genotype, and 10 had the aa genotype. What might we infer about the adaptive value of the heterogenous genotype? It has no adaptive value. It has been adaptive and subject to selective pressures. It has been selected against. Its frequency is likely due to genetic drift. QUESTION 7 In order for a trait to be subject to evolution it must be heritable. Is the trait described in the following scenario heritable? There is a terrible ice storm that kills off all lighter than average weight birds of a particular species in the area. The birds mate in spring and the adult mass of the offspring is the same in the population as before the ice storm. Yes No QUESTION 8 In order foarait to be subject to evolution it must be heritable. Is the trait described in the following scenario heritable? There is a terrible ice storm that kills of all lighterthan average weight birds of a particular species in the area. The birds mate in spring and the adult mass of the offspring is greater in the population than before the ice storm. Yes No QUESTION 9 You are breeding your favorite kind of fiower in your back yard. There is a flower farm and a honey farm nearby. You have a fair number of plants, you have been doing this for only a couple of years, and you are selecting for red flowers as opposed to white. You know petal color has a simple genetic basis (white is dominant to red) but you keep getting white flowers popping up in your flowerbed. What mechanism of evolution is at work? Gene flow. Mutationn Natural selection Genetic drift.

Explanation / Answer

QUESTION 4

If no evolution is occurring at the locus, what should be the sum total of the p and q alleles?

It must be 1 because the allelic frequencies have not changed because the population is in Hardy-Weinberg equilibrium without evolutive forces acting in the population.

QUESTION 5

If the frequency of the dominant allele A in a population of 145 individuals is 0.59, how many individual should have the AA genotype if the population is in Hardy-Weinberg equilibrium?

We now that the frequency of the Allele A is p=0.59

And we know that the population is in Hardy-Weinberg equilibrium so the frequency of the genotype AA is p2

p2= (0.59)2=0.35

So the 35% of the total population has the AA genotype

Frequency of the AA genotype=(0.35)(145)=50

So the answer is 50

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