Parents of Cross #1 elect Cross Female: +; N = 1 ✓ Male: AR, PR ST.M..C..RI, D..J.; N = 1 Q Select to Mate Q Select to Mate Offspring of Cross #1 Female AR; N = 123 Male..AR; N = 115 Female:.D; N = 145 Male:.D; N = 124 0 Select to Mate Select to Mate Q Select to Mate Select to Mate Offspring of Cross #1 Female AR; N = 123 Male..AR; N = 115 Female: .D; N = 145 Male:.D; N = 124 Select to Mate Select to Mate Q Select to Mate ૧ Select to Mate Female: AR, ST; N = 141 Male: AR, ST.; N = 113 Female: STD; N = 119 Male: ST..D; N = 136 Q Select to Mate Q Select to Mate Q Select to Mate Q Select to Mate

Parents of Cross #1 elect Cross Female: +; N = 1 ✓ Male: AR, PR ST.M..C..RI, D..J.; N = 1 Q Select to Mate Q Select to Mate Offspring of Cross #1 Female AR; N = 123 Male..AR; N = 115 Female:.D; N = 145 Male:.D; N = 124 0 Select to Mate Select to Mate Q Select to Mate Select to Mate Offspring of Cross #1 Female AR; N = 123 Male..AR; N = 115 Female: .D; N = 145 Male:.D; N = 124 Select to Mate Select to Mate Q Select to Mate ૧ Select to Mate Female: AR, ST; N = 141 Male: AR, ST.; N = 113 Female: STD; N = 119 Male: ST..D; N = 136 Q Select to Mate Q Select to Mate Q Select to Mate Q Select to Mate

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter12: Mendel, Genes, And Inheritance

Section: Chapter Questions

Problem 7TYK: In cats, the genotype AA produces tabby fur color; Aa is also a tabby, and aa is black. Another gene...

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In cats, the genotype AA produces tabby fur color; Aa is also a tabby, and aa is black. Another gene at a different locus is epistatic to the gene for fur color. When present in its dominant W form (WW or Ww), this gene blocks the formation of fur color and all the offspring are white; ww individuals develop normal fur color. What fur colors, and in what proportions, would you expect from the cross AaWw Aa Ww?
n Figure 4-19, what would be the RF between A/a andB/b in a cross in which purely by chance all meioses hadfour-strand double crossovers in that region?
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?
Answer brief
. Chromosome 3 of corn carries three loci (b for plant-color booster, v for virescent, and lg for liguleless). A testcross of triple recessives with F1 plants heterozygous forthe three genes yields progeny having the followinggenotypes: 305 + v lg, 275 b + +, 128 b + lg, 112 + v +,74 + + lg, 66 b v +, 22 + + +, and 18 b v lg. Give the genesequence on the chromosome, the map distances between genes, and the coefficient of coincidence.
If these segregation patterns are equally likely, what is the probability that a gamete produced by the individual who carries the translocatedchromosome will result in a viable offspring with a normal phenotype?
Offspring phenotype Purple Terminal 32 38 Question Purple Axial 99 112 Cross White White Axial 29 114 Terminal 12 40 1(a) 1(b) 1(c) 1(d) 1(e) Purple, Axial x Purple, Axial White, Axial x Purple, Axial Purple, Terminal x White, Axial Purple, Terminal x White, Axial White, Terminal x White, Terminal 150 155 100 99 101 104 192 a) i) Referring to the data above, determine the genotype both parents for the cross between "White, Axial x Purple, Axial". Note: P = purple, p = white, A = axial, a = terminal. 11) Referring to the data above, determine the genotype both parents for the cross between "Purple, Terminal x White, Axial". Note: P = purple, p =white, A = axial, a = terminal i11) Referring to the data above, determine the genotype both parents for the cross between "Purple, Terminal x White, Axial". Note: P = purple, p = white, A = axial, a = terminal. iv) Referring to the data above, determine the genotype both parents for the cross between "White, Terminal x White, Terminal". Note: P…
The following corn loci are on one arm of chromosome9 in the order indicated (the distances between themare shown in map units):c-bz-wx-sh-d-centromere12 8 10 20 10C gives colored aleurone; c, white aleurone.Bz gives green leaves; bz, bronze leaves.Wx gives starchy seeds; wx, waxy seeds.Sh gives smooth seeds; sh, shrunken seeds.D gives tall plants; d, dwarf.A plant from a standard stock that is homozygous for allfive recessive alleles is crossed with a wild-type plantfrom Mexico that is homozygous for all five dominantalleles. The F1 plants express all the dominant allelesand, when backcrossed to the recessive parent, give thefollowing progeny phenotypes:colored, green, starchy, smooth, tall 360white, bronze, waxy, shrunk, dwarf 355colored, bronze, waxy, shrunk, dwarf 40white, green, starchy, smooth, tall 46colored, green, starchy, smooth, dwarf 85white, bronze, waxy, shrunk, tall 84colored, bronze, waxy, shrunk, tall 8white, green, starchy, smooth, dwarf 9colored, green, waxy, smooth,…
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The XG locus on the human X chromosome has twoalleles, XG+ and XG. The XG+ allele causes the presence of the Xg surface antigen on red blood cells,while the recessive XG allele does not allow antigento appear. The XG locus is 10 m.u. from the STSlocus. The STS+ allele produces normal activity ofthe enzyme steroid sulfatase, while the recessive STSallele results in the lack of steroid sulfatase activityand the disease ichthyosis (scaly skin). A man withichthyosis and no Xg antigen has a normal daughterwith Xg antigen. This daughter is expecting a child.a. If the child is a son, what is the probability he willlack Xg antigen and have ichthyosis?b. What is the probability that a son would have boththe antigen and ichthyosis?c. If the child is a son with ichthyosis, what is theprobability he will have Xg antigen?
. As we learned in this chapter, the white mutation ofDrosophila studied by Thomas Hunt Morgan isX-linked and recessive to wild type. When truebreeding white-eyed males carrying this mutationwere crossed with true-breeding purple-eyed females,all the F1 progeny had wild-type (red) eyes. When theF1 progeny were intercrossed, the F2 progeny emergedin the ratio 3/8 wild-type females: 1/4 white-eyedmales: 3/16 wild-type males: 1/8 purple-eyed females:1/16 purple-eyed males.a. Formulate a hypothesis to explain the inheritanceof these eye colors.b. Predict the F1 and F2 progeny if the parental crosswas reversed (that is, if the parental cross wasbetween true-breeding white-eyed females andtrue-breeding purple-eyed males).
Pls someone explain this to me. I literally have no idea why the answer is 73. Any explanation for me to understand greatly appreciated and i will give thumbs .up.