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 total number of flower color alleles in this population of plants? a- 500 b- 2 c- 375 d- 1,000 e- 4

You do a testcross to map three genes, Ph, T, and Qc. In the table below, you will find the number of offspring that inherited each combination of alleles from the heterozygous parent. Make a genetic map and then report the genetic distance between each pair of genes to the nearest 0.1 cM. Ph gene T gene Qc gene counts ph Qc 304 Ph qc 301 Ph T. qc 172 ph Qc 169 ph T. qc 21 Ph Qc 19 Ph Qc ph t qc 6 Genetic distance from Ph to T: cM Genetic distance from T to Qc: cM Genetic distance from Ph to Qc: cM

In a Gecko population a group of Geckos skin color is controlled by one gene with two alleles "R"which codes for red and is dominant to "r" which codes for yellow and is recessive. If 100 Geckos are on the island and you gene test them to know their alleles you'll observe that 30 are homozygous red, 60 are heterozygous red, and 20 are homozygous recessive. Determine the Chi-square. assuming the original parents (Rr xRr).* Hint: determine the expected first before plugging into the equation awesome as this one? REGISTER NOW 13 5 11 4 D

In pea plants, the color purple is dominant to the color white. A farmer with an isolated patch of pea plants counts 36 purple-flowering plants and 64 white-flowering plants. Assuming the patch is in Hardy-Weinberg equilibrium, what is the frequency of the white allele? 0.75 0.64 0.80 0.36

Hippogriffs can have black fur or gray fur. However, there is a high rate of mutation from black alleles into gray alleles. In a population of 1000 hippogriffs, if there are 600 alleles for black fur and the forward mutation rate (ie., from black to gray) is 10%, approximately how many black alleles should be expected in the next generation? Group of answer choices 60 540 300 10 660

You are performing a series of experiments on fruit flies.  You have a true breeding population of flies with red eyes, and a true breeding population of white eyes.  You breed the population of flies to each other to get an F1 generation.  In this F1 generation, 75% of the flies have Red eyes, 25% of the flies have white eyes.   All the female flies have red eyes, half of the male flies have white eyes and the other half have red eyes. A statistically significant number of baby flies were produced in this cross. 1) What is that number? 2) What is the genotype ratio of the F1 generation?  Give the genotypes.

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). In this population of plants, approximately how many copies of the r allele are there? Group of answer choices a. 750 b. 230 c. 20   d. 130 e. 870

In a species of beetle, the size and color of the wings are controlled by two distinct genes. There are two alleles for the size gene: the big allele makes wings large, and the small allele makes them smaller. There are two alleles for the color gene: red and yellow. You are able to estimate the frequency of the four haplotypes from a museum collection from 60 years ago. You also estimate haplotype frequencies in the present day. The data are shown in the table below. Museum (60 ya) Present day big/red 0.69 0.5452 big/yellow 0.00 0.1448 small/red 0.09 0.2348 small/yellow 0.22 0.0752 A) What is linkage disequilibrium (LD) between the size and color loci in the museum collection? What is LD in the present day? B) Assuming one generation per year, what is the recombination fraction between the size and color loci?

The frequency of a recessive allele in a population is 50%. What is the frequency of the dominant allele?

If one parent is dominant tall, and one parent is mixed hybrid, what is the phenotype in percentage (%) for the possible offspring? Use the reference sheet below to answer.