Scientist sampled a population and the homozygous dominant genotype was 36% for disease X. What is the frequency of the heterozygotes in the population?

In a population of 500 fruit flies, 250 are genotype RR, 100 are genotype Rr and 150 are genotype rr. Determine the allele frequencies for this gene in this population. Remember that the frequencies should add to 1. Please show your work.

a. Population - Parent Generation i) What is the blue phenotype frequency? ii) What is the Aa genotype frequency? iii) What is the A allele frequency? b. Population 2 - Offspring of parent generation above i) What is the blue phenotype frequency? ii) What is the Aa genotype frequency? iii) What is the A allele frequency? c. Is this population evolving? Please explain why or why not. AA AA Aa AA AA Aa Aa Aa Aa Aa Aa Aa aa aa aa aa Aa Aa

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-cell gene? Assume Hardy-Weinberg conditions. Submit your answer as it is. a) homozygous recessive individuals (q²) b) the recessive allele (q) c) the dominant allele (p) d) homozygous dominant individuals (p²) e) heterozygous individuals (2pq)

Imagine you were to collect data from simulation 2 (negative selective pressure on SS genotypes) over five generations. The frequency of the S allele over time is graphed below. The graph shows a rapid decrease in the sickle cell allele frequency in the first generation but a slower decrease in later generations. By the fifth generation, the allele is not completely eliminated from the population. Provide two plausible explanations for why the S allele persists after five generations.

Once upon a time there was a population of hippies living in an isolated commune called Gone. They had been there for generations, and all members were homozygous for a gene that gave them a preference for crafting necklaces out of green beads, so that every individual had the genotype GG at this locus. In another isolated commune, called Yonder, was a population of hippies that had a genetic propensity for making necklaces out of yellow beads, and everyone was homozygous for a different allele at the same genetic locus; their genotype was YY. Last year (prior to our current social isolating) everyone repaired their W buses, and a giant gathering in celebration of the 50th anniversary was held at the Oregon Country Fair. The next few questions will ask you about these two populations that came together at the fair. Genotype Observed Expected (0-E) (0-E)2 (O-E)?/E GG 81 79.2 81-79.2-1.8 1.82=3.24 3.24/79.2=0.04 12.96/105.6=0. GY 102 105.6 102-105.6=-3.6 -3.62=12.96 12 YY 37 35.2…

What impact might a vaccine against malaria have on the frequency of the Sickle Cell allele in Africa in the long run?

A population is made up of individuals where 77 have the A1A1 genotype, 65 have the A1 A2 genotype, and 123 have the A2A2 genotype. What is the allele frequency of A1? Answer to 2 decimal places.

A hypothetical population has two alleles for a “B" gene: B1 and B2. In a random sample of 50 diploid zygotes (for a total of 100 alleles), the following genotypes were found: 20 B1B1, 20 B1B2, and 10 B2B2 The above values represent the initial genotype frequencies of zygotes in the population. Let's say that selection acts against the B2 allele, and all 10 individuals with B2B2 genotype die off before reaching maturity (leaving 0 B2B2 individuals). (The number of surviving adults in the population is 40, so the number of alleles is 80). What is the new observed frequency of the homozygous dominant genotype? O A. 0.10 О В. О.70 O C. 0.25 O D.0.50 O E. 0.75

Panthers are also susceptible to a respiratory infection [feline calicivirus].  Individuals in a population, who are homozygous dominant or heterozygous for genes encoding parasite or pathogen resistance, are more likely to resist an infection or parasite.  Currently, population estimates of the Florida panther range from 100 – 160 individuals.  Let’s assume that the population equals 160.  During a particularly bad calicivirus outbreak,   40 Florida panthers die as a result of the infection.  Using this information, answer the following questions utilizing the Hardy – Weinberg equation when necessary.     What is the most likely genotype of the affected panthers that died from the respiratory infection? Use the letter “A” for your symbol.         2. What percentage of the population is most likely resistant to the calicivirus infection?