A extremely large population of flowers previously had a pollinator that was equally likely to visit all colors of flowers. The population experienced no selection, migration, and negligible mutation. The genotype frequencies were the following: AA = .41 (red) Aa = .50 (orange) aa = .09 (yellow) But recently, this insect pollinator that did not distinguish between colors went extinct. Policymakers introduced 3 new pollinators: the first pollinator only visits the red flowers, the second pollinator only visits the orange flowers, and the third pollinator only visits the yellow flowers. After one generation with these pollinators, what will be the genotype frequency of the heterozygote (orange) flowers? O 1.0 O .82 O .25 0.5 О.18

The crab spider, Thomisus spectabilis, sits on flowers and preys upon visiting honeybees. Do honeybees distinguish between flowers that have crab spiders and flowers that do not? To test this, Heiling et al. (2003) gave 34 bees a choice between 2 flowers: one with, and one without a crab spider. In 24 of the 34 trials, the bees picked the flower that had the spider. In the other trials, the bees chose the spiderless flower. With these data, carry out the appropriate hypothesis test (one- or two-tailed), using the normal approximation to the binomial distribution to determine Z. For a one-tailed test, use the formula =(1-NORM.DIST(Z,0,1,TRUE) in Excel calculate P. For a two-tailed test, use the formula =2(1-NORM.DIST(Z,0,1,TRUE). State your answer for the value of P to three decimal places, and include the leading zero. Do all of the math in Excel DO NOT round the value of Z. Substitute the cell (e.g. B1) for Z in the formula for P.

A meadow is home to a population of plants of a particular species. Among these individuals are 125 plants that have red flowers and 375 plants that have white flowers. The allele of the flower color gene that produces red flowers (R) is completely dominant over the white flower color allele (r). What is the frequency of the dominant R allele in this population? a- 0.75 b- 0.87 c- 0.13 d- 0.25

Imagine that researchers are studying 2 populations of a hypothetical flowering plant, Darwinius beardii. Individual plants of population "A" grow to an average height of 25 cm, while those of population "B" average 40 cm. The flowers of population "A" are light purple and open in mid-April, while those of population "B" are dark purple with white spots and open in early May. These 2 populations are geographically separated by a large river, and geological and molecular genetic evidence suggests that they have been separated for at least 10 million years, during which time evolutionary divergence has occured. Yet, when individuals from each population are brought into the lab, they readily mate with individuals of the other population. Under which species concept(s) would the plants of the 2 populations be considered 2 different species? O A. Biological species concept O B. Phenetic species concept O C. Phylogenetic species concept O D. both the Phenetic and Phylogenetic species…

In a population of flowering plants there are four alleles of a gene determining flower color. The allele frequencies in the population: Y: 0.4, R: 0.4, P: 0.1, V: 0.1. What is the expected frequency of RV genotypes? O 0.08 O 0.4 0.05 0.5 O 0.04

Evolution determines the change in inherited traits over time to ensure survival. There are three variants identified as Variant 1 with high reproductive rate, eats fruits and seeds; Variant 2, thick fur, produces toxins; and Variant 3 with thick fur, fast and resistant to disease. These variants are found in a cool, wet, and soil environment. In time 0 years with cool and wet environment, the population is 50,000 with 10,000 Variant 1, 15,000 Variant 2, and 25,000 of Variant 3. Two thousand years past, the environment remained the same with constant average temperature and rainfall. Variant 1 with a population of 26,000, Variant 2, 35,000, and Variant 3, 62,000. A disease spread throughout the population. However the population increased to 72,000. Determine the percentage increase in the population of the variants.

You have a population of flies in a tank in your lab.  The population is in Hardy-Weinberg equilibrium for a gene that codes for wing shape.  The dominant form of the wing shape gene is “W”.  The recessive form of the wing shape gene is “w”.  Flies that are homozygous recessive for the wing shape gene have very short wings; heterozygous and homozygous dominant individuals have long wings. You have a total population of 900 flies; 150 of those flies have very short wings.   The frequency of the w allele in the population of flies described above is _______. Group of answer choices 0.01 0.09 0.60 0.91 0.41

You are mapping three loci in Brandywine apricot trees (Prunus brandybucki), an important agricultural species in the Shire.  In Brandywine apricot trees, sour fruit (fr+) is dominant to fishy-tasting fruit (fr), blue flowers (b+) is dominant to yellow flowers (b), and short, bushy height (sh+) is dominant to tall, tree-like height (sh).  You perform a testcross with a plant that is heterozygous for all three loci and get the following offspring:   Fruit flavor Flower color Plant height Observed Counts fr+ b+ sh+ 61 fr b sh 53 fr+ b+ sh 11 fr b sh+ 7 fr+ b sh 277 fr b+ sh+ 285 fr+ b sh+ 156 fr b+ sh 150     Total 1000     What is the recombination frequency between b and sh?

Environment: Polluted Forest   Moths Released G1 G2 G3 G4 G5 Typica 810 327 303 169 103 59 Carbonaria 190 240 486 693 974 1407 Total 1000 567 789 862 1077 1466 Phenotype Frequency   Color Initial Frequency Frequency G5 Typica w 0.81   Carbonaria b 0.19   Allele Frequency   Allele Initial Allele Frequency G5 Allele Frequency q d 0.90   p D 0.10   Genotype Frequency   Moths Genotype Color Moths Released Initial Frequency Frequency G5 Number of Moths G5 q2 typica dd w 810 0.81     2pq carbonaria Dd b 180 0.18     p2 carbonaria DD b 10 0.01

In garden pea plants, round seeds (R) are dominant to wrinkled seeds (r). In an ideal  pea plant population exhibiting Hardy–Weinberg equilibrium, 35 pea plants out  of 146 have wrinkled seeds.  Calculate the frequency of homozygous round pea plants in the population. Show all work. Express your answer using two significant digits: