12. A summer student accidentally brought in a new heterozygous strawberry plant (with small red berries) that had different parents. The parents of the new plant had small, black berries and large, red berries. Fortunately the technician knew that both parents of the new strawberry plant were pure breeding (i.e., homozygous for both traits). Draw a Punnett square to illustrate the cross between the new heterozygous strawberry and a strawberry plant with large, black fruit. Using the map units and percentage recombination you calculated in question #11, calculate the expected genotypic ratie and phenotypic frequencies amongst the offspring of this cross. Show all of your work.

Incomplete Dominance 1. In snapdragons, red flower color (R) is incompletely dominant over white flower color (r). The hybrids or heterozygous plants (Rr) are pink in color. a) Show the genotype for a white flower and for a red flower. b) If a red-flowered plant is crossed with a white-flowered plant, what are the genotypes and phenotypes of the F1 generation plants? Show your work. c) What genotypes and phenotypes will be produced in the F2 generation? Show your work? the the o doa A t r th s beirs ard the phenorypic and wo ran aials pring fro d) How did the genotypic and phenotypic ratio compare to each other in this incomplete dominance cross? gonarypi and e) What would the phenotypic ratio have been if this had been complete dominance?

4. A true-breeding strain of wheat that has brown kernels is crossed with a true-breeding strain that has white kernels. The F₁ generation has all brown kernels. The F₁ generation is self crossed and the phenotypes in the F2 generation are 15/16 brown 1/16 white Propose a genetic model to explain these results.

4. Barb Wyre, a plant geneticist at the UK Ag Experiment Station, has set up a cross between two tobacco plants - one is heterozygous for three genes, and the other is homozygous recessive for the same three genes. She sows the F1 progeny seeds in the field; unfortunately, a hailstorm destroys some of her plants. Fortunately, she has enough survivors to permit an accurate statistical analysis of the cross, and she proceeds. The adult F1 plants exhibit the following phenotypes: OPS- OPS OpS - OPS - I 2 1 96 Ops OPS 110 op S - 306 ops 63 - - - 73 348 - Construct a map of the three genes.

10. You are testing Drosophila for the following recessive genes: "spinless" without bristles on the wings; "claret" dark brown eyes; and "hairless" without thoracic bristles. You do a test cross with a heterozygous female for all three genes, and you get the following progeny: spineless 82wild 380claret, spinless 130claret 18claret, hairless 80hairless, claret, spinless 323hairless 140hairless, spinless 12 The correct distance between sp - cl genes is: a. 0.25 umb. 0.36 umc. 41 umd. 25 ume. 16 um   11. You are testing Drosophila for the following recessive genes: "spinless" without bristles on the wings; "claret" dark brown eyes; and "hairless" without thoracic bristles. You do a test cross with a heterozygous female for all three genes, and you get the following progeny: spineless 82wild 380claret, spinless 130claret 18claret, hairless 80hairless, claret, spinless 323hairless 140hairless, spinless 12 The correct distance between sp - hl genes is: a. 0.25 umb. 0.36 umc. 41 umd. 25…

1. A gardener finds that some bean plants have pubescent leaves and others have glabrous leaves. a. Based on the results of the following crosses below, which trait is dominant, pubescent or glabrous? Which of the following crosses helped you determine the answer? b. Based on your answer in 1.a, determine the genotypes of the parents of each cross.

1. The seeds in this exercise were produced by a heterozygous parent and homozygous recessive parent as described in step 4. List all possible crosses that could have produced the homozygous recessive parent (cc). 2. Was the Punnett square created in this exercise a good predictor of offspring phenotypes resulting from a cross between a homozygous recessive wrinkled-seed-producing millet plant and a heterozygous smooth-seed-producing millet plant? Reference Photo 1 and the results recorded in Data Table 4 in your explanation.

4) In tomatoes, round shape (R) is dominant to pear shape (r). A student crossed a plant that had round tomatoes with a plant that had pear-shaped tomatoes and obtained the data below. What are the genotypes of the plants that were crossed. Briefly explain your answer. Phenotype Number of Offspring Round tomatoes 36 Pear-shaped tomatoes 34

3. please answer this question

Part 1: Make a three part process drawing (like a cartoon strip) to demonstrate Mendel's Principle of Segregation. Use two parents with homologous chromosomes marked with alleles "A" and "a". Circle and label these three action parts of the Principle of Segregation: a) parents are diploid, b) alleles separate to form haploid gametes (indicate when this happens), and c) gametes from each parent combine at random to form diploid offspring Part 2: Use the cross Aa x Aa and a Punnett square to demonstrate Mendel's Principle of Segregation. Circle and label these three action parts of the Principle of Segregation: a) parents are diploid, b) alleles separate to form haploid gametes and c) gametes from each parent combine at random to form diploid offspring. Part 3: Use homologous chromosomes marked with alleles "A" and "a" and a second pair of homologs marked with alleles "B" and "b". to demonstrate Mendel's Principle of Independent Assortment in cells in Meiosis. Indicate what phase this…