please answer the following questions with detailed explanation. thanks Mendelian Genetics1. In hypothetical plant, a serrated leaf margined plant, when crossed with a smooth leaf margined plant, producesoffspring with wavy leaf margin.A. Identify the mode of inheritanceB. Two serrated plants, when crossed, will give what type of offspring?C. Two wavy plants will produce what possible kinds of offspring? Give ratios?2. In cattle, coat color is inherited in a co-dominant fashion. Homozygous BB produces black coat, homozygous bbproduces white coat, and the heterozygous Bb produces roan coat. Give the phenotypic ratio of the offspring ofthe following crosses:А. ВВ x ВВB. BB x bbС. ВВ x ВЬ

2. In cattle, coat color is inherited in a co-dominant fashion. Homozygous BB produces black coat, homozygous bb produces white coat, and the heterozygous Bb produces roan coat. Give the phenotypic ratio of the offspring of the following crosses: A. BB x BB B. BB x bb C. BB x Bb

2. In cattle, coat color is inherited in a co-dominant fashion. Homozygous BB produces black coat, homozygous bb produces white coat, and the heterozygous Bb produces roan coat. Give the phenotypic ratio of the offspring of the following crosses: A. BB x BB B. BB x bb C. BB x Bb

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter3: Transmission Of Genes From Generation To Generation

Section: Chapter Questions

Problem 16QP: More Crosses with Pea Plants: The Principle of Independent Assortment Consider the following cross...

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4 *The normal color of snapdragons is red. Some pure lines showing variation in flower color have been found. Analyze the following crosses and do the following:² c. Explain the inheritance of these colors (include number of genes, alleles and dominance relationships). d. Determine the genotypes of the parents and the F1 of each cross. e. Propose a biochemical pathway for flower color production in snapdragons. F₂ Parents 1. orange x yellow 2. red x orange 3. red x yellow 4. red x white F₁ orange red red red red 5. yellow x white 9 red: 3 yellow: 4 white 6. orange x white 9 red: 3 orange: 4 white 7. red x white 9 red: 3 yellow: 4 white Hint: Come up with a possible pathway first, it helps to organize your thoughts. red 3 orange: 1 yellow 3 red: 1 orange 3 red: 1 yellow 3 red: 1 white red
Genetics 181 Rule of Incomplete Dominance When two different pure-breeding strains are crossed, and their offspring show a blending of phenotypes, then neither allele is dominant. This is easily recognized when the phenotype is somewhere between two extremes. Counting the parents, there are three phenotypes (black, white, grey) being expressed in these flowers instead of only two, and that third phenotype is intermediate between the other two. This heterozygous condition is called incomplete dominance. 1. On the chart you did earlier, which of the three hair types (wavy, curly, or straight) represents incomplete dominance-the blended heterozygous condition? 2. You cross a herd of red cattle with white cattle and all of the calves appear to be roan (reddish white). Is this an example of incomplete dominance? How do you know? 3. You cross a blue flowering pea plant with a white flowering pea plant and all of the offspring are blue flowered. Is this an example of incomplete dominance? How…
Quantitative Inheritance 16. FRUIT WEIGHT IN ORANGES Shown below are the results of a breeding experiment designed to test the inheritance of fruit weight in oranges. The initial cross was between two true-breeding lines, Inbred X and Inbred Y, which were grown under identical environmental conditions and produced fruit weighing 24 and 32 grams, respectively. a. P₁ F₁ F₂ Inbred X 24 g Number of Plants 2 18 58 114 131 107. 52 16 2 28 g Inbred Y 32 g F₁ hybrid: Fruit Weight in Grams 36 34 32 30 28 26 24 22 20 Determine the number of gene pairs contributing to fruit weight that are segregating in this cross. Clearly show the method you use. b. Designate these genes with letters (A, B, C, etc.) and give possible genotypes of Inbred X, Inbred Y, and the F, hybrid. Inbred X: Inbred Y: c. A plant has all nonadditive alleles. How much will the fruit from this plant weigh? 171 d. Give three possible genotypes of plants that produce fruit weighing 32 grams.
Inheritance of a single gene: 5. A pure-bred uniform-color (un-striped) cat mates with a mackerel-striped cat: a. What is the probability of their kitten having uniform coloration? 1.0 b. What is the probability of their kitten having mackerel-striped coloration? [Choose ] [Choose ] 0 0.75 c. If two of these kittens grow up and mate, what is the probability of their second- generation (F2) kitten having uniform coloration? 0.875 0.375 0.25 0.625 1.0 d. What is the probability of their second- generation (F2) kitten being striped? 0.33 0.5 [Choose ] e. What is the probability of their F2 uniform-color kitten being homozygous for this gene? [Choose ] f. What is the probability of their F2 mackerel-striped kitten being homozygous for this gene? >
✓ [Select] all 75% 50% 25% none
Inheritance of a single gene: 4. A "chocolate" cat mates with a cat heterozygous at the gene for TRP-1: a. What is the probability of their kitten having brown coat color? 0.875 [Choose ] 0.375 b. What is the probability of their kitten having black coat color? 0 0.875 0.33 0.5 c. What is the probability of their brown kitten being homozygous for this gene? 0.25 0.75 1.0 d. What is the probability of their black kitten 0.625 being homozygous for this gene? 0.375 <
O e. Parent 2: Parent 1: Parent 2: ¡Ai QUESTION 9 Bi QUESTION 8 Let's assume that, in dragons, red scales (B) are dominant to green scales (b), and long tongues (S) are dominant to short tongues (s). The genes that determine these characteristics assort independently. A homozygous red, long-tongued dragon is crossed with a homozygous green, short-tongued dragon. If an F1 dragon is crossed to a homozygous green and homozygous short-tongued dragon, what phenotypes and proportions are expected in the offspring? O a. 100% green and long-tongued O b. ½ green and short-tongued & ½ red and long-tongued O c. ½ red and short-tongued & ½ green and long-tongued O d.% red and long-tongued, % red and short-tongued, ½ green and long-tongued, % green and short-tongued O e. 9/16 red, long-tongued, 3/16 green, long-tongued, 3/16 red, short-tongued, 1/16 green, short-tongued Save and Submit to save and submit. Click Save All Answers to save all answers. 000 MacBook Air
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?
3. Short-tailed pup distribution. In mice, the dominant T allele results in a short tail. Homozygous T/T genotype is lethal, which means mouse embryos with this genotype die before they are born. Homozygous t/t is normal, with normal tail. A cross between two short-tailed mice produces a litter of 5 pups. a). What are the genotype(s) of the two short-tailed mice used in the cross? b). What are the possible genotypes and phenotypes of the 5 pups? What are their perspective ratio?
11. Mendel crossed peas having round seeds and yellow cotyledons with peas having wrinkled seeds and green cotyledons. All the F1 plants had round seeds with yellow cotyledons. a. What are the genotypes of the parent plants? b. What gametes could be produced by the parent with round seeds and yellow cotyledons? T C. What gametes could be produced by the parent with wrinkled seeds and green cotyledons?
vision. 6. Brown eyes are a dominant eye-color allele and blue eyes are recessive. A brown eyed woman marries a brown eyed man, they had a son who has blue eyes. The brown eyed woman's mother also had brown eyes, but her father had blue eyes. The brown d father of the blue eyed son has parents who were both brown eyes. 1) Draw a pedigree (with the information from above) that shows all four grandparents, the two parents, and the son. 2) Indicate each individual's possible genotypes.
4. Complex inheritance: Remember there are some exceptions to Mendels laws such as incomplete dominance (hint a blending), codominance (hint: both traits show). Use this information to answer the following questions. e. A lily flower species contains 3 possible colors: blue (BB), red (RR), and purple (BR). What type of inheritance pattern is this? Incomplete Dominance f. If a red flower and purple flow are crossed what percent of the flowers would be red? Complete a punnett square to prove your answer. g. A man with type B blood marries a woman with type AB blood. Based on what you know about blood types, what is the only blood type not possible in any of their children? (remember you need to do two punnett squares to answer this) WATCH REVIEW VIDEO: Blood Types Parent Cross Blood Type that is not possible (supported by evidence in crosses above:) F1 Cross