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HELP PLEASE! Please do all (: HELP PLEASE! Please do all (: HELP PLEASE! Please

ID: 255176 • Letter: H

Question

HELP PLEASE! Please do all (: HELP PLEASE! Please do all (: HELP PLEASE! Please do all (: HELP PLEASE! Please do all (: Hardy-Weinberg Problem Set . In the scarlet tiger moth (Panaxia dominula), wing coloration has been shown to behave as a single-locus, two-allele system with incomplete dominance. Data for 1612 ndividuals are given below: White-spotted (AA) -1469: Intermediate (Aa) 138: itle spotting (oo) -s Aa 2. If 9% of an African population is born with a severe form of sickle-cell anemia (SS), what percentage of the population will be more resistant to malaria because they are heterozygous(Ss) for the sickle-cel gene? 3. After graduation, you and 19 friends build a raft, sail to a deserted island, and start a new population, totally isolated from the world. Two of your friends carry (that is, are heterozygous for) the recessive cf allele, which in homozygotes causes cystic fibrosis. Assuming that the frequency of this allele does not change as the population grows. what will be the instance of cystic fibrosis on your island? A. B. Cystic fibrous births on the island is how many times greater than the original mainland. The frequency of births on the mainland is .059%.

Explanation / Answer

(1)

q^2=aa= 5/1612=0.0031=0.31%

p^2=1469/1612=0.911=91.1%

2pq=138/1612=0.085=8.5%

(2)

ss=q^2=9%=0.09

q=Square root of 0.09 =0.3

p+q=1

p=1-q=1-0.3=0.7

2pq=Ss= 2 x 0.7 x 0.3 = 0.42=42%

Percentage of population that is heterozygous for sickle cell gene is 42%