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 82 wild 380 claret, spinless 130 claret 18 claret, hairless 80 hairless, claret, spinless 323 hairless 140 hairless, spinless 12 The correct distance between sp - cl genes is: a. 0.25 um b. 0.36 um c. 41 um d. 25 um e. 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 82 wild 380 claret, spinless 130 claret 18 claret, hairless 80 hairless, claret, spinless 323 hairless 140 hairless, spinless 12 The correct distance between sp - hl genes is: a. 0.25 um b. 0.36 um c. 41 um d. 25 um e. 16 um

4. What is the probability that individual III-8 is a carrier?

1. During his study of the rare Idlewild Lady Slipper (a wild orchid), Dr. Jorge Whiteback discovered several variants of the typical "wild-type" phenotype. He found two varieties of lady slippers at different elevations: a lady slipper variety found in the valley with red flowers and a lady slipper found at higherelevations with white flowers. When Dr. Whiteback did controlled crosses between lady slippers with red flowers and lady slippers with white flowers, all the offspring of this cross had pink flowers. After allowing pinkflowering lady slippers to self-fertilize, the next generation of plants had 112 red flowering plants, 218 pink flowering plants, and 108 white flowering plants.1a) What mode of inheritance would best explain the results of Dr. Whiteback's crosses?b) How many genes and how many different alleles of these gene(s) are determining flower coloraccording to your mode of inheritance?c) Define alleles using the appropriate notation for your answer in (a) and use that…

1.What are the phenotypes of the parents of the corn dihybrid cross described above? 2. What are the possible genotypes of the parent gametes of the corn dihybrid cross described above? 3.What is the phenotype of the F1 generation of the corn dihybrid cross described above?

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…

1. The height of a wheat plant is determined by several genes. In a variety the minimum size is 12 inches and the maximum is 24 inches. 12-inch plants were crossed with 18-inch plants, and produced an 18-inch F1. The F1 was allowed to cross each other, and an F2 was obtained in which the 12 and 24 inch plants were obtained with a frequency of 2/8195. How many genes are involved in determining plant size in this variety of wheat? Select one: a. 5b. 6c. 4d. 3

11. Perform two consecutive crosses similar to those of Mendel for the following individual plants. Plants with round seeds (RR) are crossing with plants with wrinkled seeds (rr). After the first cross, cross the offspring together to generate F, offspring. What are the genotypic and phenotypic ration of F,? Round : wrinkled 3 1 phenotypic ratio: RR: Rr: rr Genotypic ratio: 1: 2: 1 12. Perform two consecutive crosses between these two plants, GGHH x gghh, as in question #11.

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9. Make a pedigree for each of the following situations. For each individual, write the individual's genotype (when possible) next to the individual's symbol (e.g. O xty, I Gg): a. Two parents do not have cystic fibrosis and they have a daughter with cystic fibrosis and a son who does not have cystic fibrosis. The daughter grows up and she mates with a male who does not have cystic fibrosis. Their only child is a boy and he has cystic fibrosis. b. A man with hemophilia mates with a female without hemophilia. They have one son and one daughter. The daughter has hemophilia and the son does not have hemophilia. The son grows up, and he marries and mates with a female. Their only child is a boy, and he has hemophilia.