A certain population of Sistrurus milarius, there exists an allele “d" which has the frequency of 25%. This allele confers the ability to allow the organism to grow to lengths exceeding 3m. This population occurs in the northern 2/3 of Alabama. Out of a population of 80, find the following: # of individuals who are homozygous dominant # individuals who have the recessive disease

There are two incomplete-dominant alleles for petal color in a population of flowers. 36% of the flowers have red petals, 16% of the organisms have white petals, and 48% of the flowers have pink petals. What percentage of alleles in this population code for red petals (R)? Phenotype Genotype Red RR Pink Rr White rr

In a population of millipedes, the gene “R” determines their color.  The color red is determined by the dominant “R” allele and the color orange is determined by the recessive “r” allele.  A population of 100 millipedes consists of the following genotypes:       30 RR     44 Rr     26 rr Answer the following - You can represent the ratio/frequency as a fraction or a %. A. What is the genotypic ratio of this population of millipedes? B. What is the phenotypic ratio of this population of millipedes? C. What are the allele frequencies for “R” and “r” in this population of millipedes?

Cystic fibrosis (CF) is an autosomal recessive disorderthat occurs relatively frequently among people ofEuropean descent. In an Amish community in Ohio,medical researchers reported the occurrence of cysticfibrosis (CF) as being 1/569 live births. Using theHardy–Weinberg rule, estimate the frequency of carriers of the disease allele in this Amish population.

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.

Despite their excellent hygienic practices, the Kelatavicla lab experiences a devastating bacterial infection in their mouse population in 2012. Given the conditions in column B, predict what will happen to the frequency of the R allele over the years (increase, decrease, or remain the same) if the outbreak is not contained? Justify your choice with concepts and how they apply to the given case. Ensure you use appropriate terminology to name/identify the concepts and processes.

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?

A genetic mutation that causes deafness in humans has an autosomal recessive pattern of inheritance. In a study of a population of 235 Turkish children, 48 displayed the recessive phenotype. The frequency of the heterozygous genotype in the population of Turkish children described above is (Record your answer with 2 decimal place)

Entomologists at the New York State Department of Agriculture are interested in determiningthe connection between pest insects infesting crop plants with populations of the same insect-infesting native plants in natural habitats. Long-term trapping and monitoring studies have estimated that on average 3% of the populations move between habitats (farm to natural and vis versa) each generation. A new insecticide resistance allele (∆K) has begun to increase in frequency in agricultural populations. A genotyping survey at this locus of 50 individuals in each population has revealed the following genotype counts:4a. Based on the effects of migration alone, what will the frequency of ∆K be in the forestpopulation in the next generation?   4b. If migration was acting in here without selection, what would the frequency of ΔK be in the agricultural population in the next generation?   4c. If the natural forest population was substantially larger than the agricultural population, how might…

Approximately 1% of the magpies (Pica pica) in a hypothetical populations are albino. Assume that the albino phenotype is due to a recessive allele and that this population is in HardyWeinberg proportions at this locus.   (a)  What is the estimated frequency of the albino allele in this population?  (b) What is the probability that the first progeny born to a mating between an albino and a normal magpie from this population will be albino? (Hint: what is the probability that the normal magpie is heterozygous, given the allele frequencies in this population?)