BIO 1 Hardy Weinberg Practice Problem General advice: When faced with a populati

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BIO 1 Hardy Weinberg Practice Problem General advice: When faced with a population genetics problem, first ask yourself what is the 5. In a small population of cockroaches living in your kitchen, enly a few roaches mate in one variable being requested as an answer? Is#4,4 p. year Thisean leadto P. 2pq, or (p+2pg) Then remember that you have to frequency in the population start by finding q (frequency of homozygous recessive phenotype in population) and then use algebra to work from there. I recommend writing out the algebra equations instead of just working thenm out in your head Practice this: If you are trying to find p set it up p+q-1 then subtract q from both sides to get p-1-q. you will have already found A. selection B genetic drift C. mutation. D. nonrandom mating E. migration 6 Female cardinals select male mates in part based on their bright red color. What effect would this have on a cardinal population that was in Hardy-Weinberg (number of individuals exhibiting homozygous features/total number of individuals in question) Find the square root of q" to get q and then plug in A. The red allele frequencies would decrease because of equalibrium the value of q to find your answer B. The frequency of red alleles would be greater than those predicted by Hardy-Weimberg equilibrium C. The red alilele frequencies would remain unchanged because of equilibrium D. The frequency of red alleles would be less than those predicted by Hardy-Weinberg equilibrium E. The frequency of red alleles would be equal to those predicted by Hardy-Weinberg equilibrium. 1. In the Hardy-Weinberg equations, the frequencies of 2 alleles in a population (where there are only 2 alleles to consider) can be designated as A. p and q C. 2pq D. 1 p and 1 - q E (p 7. You spray your kitchen with an insecticide to kill the cockroaches. A few survive and reproduce, producing a large bealthy population in a few generations that all have similar genetic backgrounds. This is an example of A. migration 2. Two parents who do not have sickle cell anemia have a child that has the disease. The parents are both A. Homozygous for the sickle cell allele B. Heterozygous for the sickle cell allele C. Homozygous for the normal allele C. bottleneck effect D. genetic drift E assortative mating D. Epistatie for the sickle cell allele E. Pleiotropic for the sickle cell allele 3. Hardy-Weinberg pointed out that the original 8. If the frequency of an autosomal recessive trait in humans is 1 out of 100 births, what would be the proportions of the genotypes in a population would remain constant from generation to generation if expected frequency of heterozygote carriers for the trait if we assume that the gene is in Hardy-Weinberg equilibrium? A. 0.01 B. 0.10 certain assumptions are met. Which one of the following is not a Hardy-Weinberg condition? A. No selection occurs B. Random mating occurs C. No gene flow occurs D. The population is very large E. No polymorphic loci exist in the population C. 0.18 D. 081 4. For a gene with two alternative alleles, A (with a frequency of p) and B (with a frequency of q), the term in the algebraic form of the Hardy-Weinberg 9 The recessive phenotype of a trait occurs in 16% of a population. What is the frequency of dominant allele? equilibrium for the heterozygote genotype frequency A. C. B. C. 2pq E. 2Aa

Explanation / Answer

1) the correct option is option (e) (p+q)2

2) the correct option is option (e)

3) the correct option is option (b) random mating occurs .

4) the correct option is option (c)

5) the correct option is option (a) selection process occurs..

7) the correct option is option (b) mutations..

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