1 in 1700 US Caucasian newborns has cystic fibrosis, which is only present in individuals with the homozygous recessive genotype. Assuming the population is in Hardy Weinberg equilibrium, what is the allele frequency of the dominant allele in the population.

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Butterflies show 3 phenotypes due to incomplete dominance at the D locus with alleles DY and DB giving green phenotype in heterozygotes and yellow and blue in homozygotes In another population only 1% of the butterflies are blue, What is the DY allele frequency?

A human disease example in which a dominant allele that is lethal in homozygous state is Huntington’s.  A person that is heterozygous for Huntington’s disease and a normal individual had four children together.  What is your expected outcome for the surviving children (ratio-wise for the genotype)?  What is the percentage of the children that are expected to survive?  Draw a punnett square to support your answer provide full explanation pls!

In a hypothetical population, 16% have sickle-cell anemia.  The population is in Hardy-Weinberg equilibrium.  ( sickle-cell anemia is recessive) What is the frequency of the allele for sickle-cell anemia? What is the frequency of the allele for normal hemoglobin?

Disassortative mating is: Group of answer choices 1. between similar genotypes and increasing heterozygosity. 2. between similar genotypes and increases homozygosity. 3. between different genotypes and increases homozygosity. 4 Neither alters genotypic frequency nor allelic frequency. 5 between different genotypes and increases heterozygosity.

A population of 40 asters segregating at two loci with two alleles each (A/T and G/C) has 8 individuals with the AAGGgenotype. The allele frequencies of A and G are 0.5 and 0.5 in the population.   What is the coefficient of gametic disequilibrium, D?   What is the value of Lewontin’s D’? (that is “D prime”)

The recessive allele that causes Ellis– van Creveld syndrome when homozygous has a frequency of about 0.07 in the Amish population of Pennsylvania, although its frequency is only about 0.001 in the generalpopulation. How many persons out of one thousand in the Amish population would be expected to have the disease? How many out of one million in the general population?

In a population of 2000 gaboon vipers a genetic difference with respect to venom lethality exists at a single locus. The two alleles (V & v) display incomplete dominance. The population consists of 100 homozygous recessive, non-venomous vipers; 800 heterozygous, mildly-venomous vipers; and 1100 homozygous dominant, deadly-venomous vipers. What is the actual frequency of the recessive allele in the population? /

b. a. in a population. Hardy-Weinberg p+q=1 (Rr), and 16% white (rr). This population is in a Hardy-Weinberg equilibrium. 42. In a population of cattle, the following color distribution was noted: 36% red (RR), 48% roan baith p²+2pq+q² =1 Determine the frequencies of the R alleles and the r alleles? assumptions are met? What will be the distribution of genotypes in the next generation if the Hardy-Weinberg a. 36% red; 48% roan; 16% white b. 30% red; 50% roan; 20% white c. 30% red; 60% roan; 10% white d. 40% red; 40% roan; 20% white 10 u ti- sor