4) Smooth pod shape is dominant over constricted pod shape in pea plants. Fill in the Punnett square and determine the expected genotypes and phenotypes of the F1 generation by crossing homozygous recessive and homozygous dominant parents. Possible genotypes of offspring: Possible phenotypes of offspring: Percentage of offspring that are smooth: % constricted: % of offspring that are homozygous dominant: heterozygous: % homozygous recessive: Fi generation constricted? If there were 400 seeds collected, predict how many would be smooth? Predict how many seeds would be homozygous dominant? heterozygous? homozygous recessive:

4) Smooth pod shape is dominant over constricted pod shape in pea plants. Fill in the Punnett square and determine the expected genotypes and phenotypes of the F1 generation by crossing homozygous recessive and homozygous dominant parents. Possible genotypes of offspring: Possible phenotypes of offspring: Percentage of offspring that are smooth: % constricted: % of offspring that are homozygous dominant: heterozygous: % homozygous recessive: Fi generation constricted? If there were 400 seeds collected, predict how many would be smooth? Predict how many seeds would be homozygous dominant? heterozygous? homozygous recessive:

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 1TYK: The dominant C allele of a gene that controls color in corn produces kernels with color; plants...

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The dominant C allele of a gene that controls color in corn produces kernels with color; plants homozygous for a recessive c allele of this gene have colorless or white kernels. What kinds of gametes, and in what proportions, would be produced by the plants in the following crosses? What seed color, and in what proportions, would be expected in the offspring of the crosses? a. CCCc b. Cccc c. CcCc
Two pairs of traits are segregating in a cross. Two parents produce 156 progeny that fall into 4 phenotypes. The numbers of offspring in the 4 phenotypes are 89, 31, 28, and 8. What are the genotypes of the two parents?
In sesame plants the one-pod condition is dominant (P) to the three-pod condition (p), and a normal leaf (L) is dominant to the wrinkled leaf (l). Pod type and leaf type are inherited independently. Determine the genotypes for the parent producing offspring: 318 one-pod, normal leaf and 98 one-pod, wrinkled leaf PPLl x PPLl, PPLl x PpLl, or PPLl x ppLl ppll x ppLl PPLL x PPLL ppll x ppll
ibri 12 BIU A - A 4. 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? C. What gametes could be produced by the parent with wrinkled seeds and green cotyledons? d. What is the genotype of the F1 plants? e. What gametes could be produced by the F1 plants? hp
7. In pea plants, inflated pod is governed by a completely dominant gene and a constricted pod by a recessive gene. Another independently segregating dominant gene produces green pod while recessive gene produces yellow pod. Give the genotypes of the parents in each of the crosses given below. Phenotypes of Offspring Parental Phenotypes Parental genotypes Inflated Inflated Constricted Constricted yellow green yellow Green inflated green x inflated yellow 7.1. 58 62 18 22 7.2. constricted green x 56 18 constricted green 7.3 inflated yellow x 64 20 inflated yellow inflated green x inflated yellow 7.4. 36 38 inflated green x inflated green 7.5. 178 62 58 22
Cross a homozygous dominant round/green seeded plant with heterozygous round/yellow seeded plant . R-round r- wrinkled Y- yellow y- green What are the genotypes of parents? What percent will be round/yellow seeds? What are the possible phenotypes? What are the possible genotypes?
x² R AA E Paragraph 255 129 112 1 heavy, green, long heavy, green, ovate heavy, yellow, ovate heavy, yellow, long light, yellow, oblate V light, yellow, long light, green, long light, green, ovate Normal No Spacing In an East Indian mango, three genes are linked on the same chromosome. Heavy bloom is dominant to light bloom, skin that is green is dominant to skin that is yellow, and fruit with a long shape is dominant to ovate shape. A plant that is true-breeding for the dominant traits was crossed to a light, yellow and ovate fruit. The F1 plants were then testcrossed to light, yellow and ovate fruit. The following results were obtained: 251 111 133 21 Styles Heac a) Diagram the crosses for the parental generation and F1 test cross. b) Construct a genetic map that shows the order of these three genes and the distances between them.
Consider the following cross examining four gene in two parental lines: Parent 1: A/a; B/b; D/d; e/e Parent 2: a/a; b/b; d/d; E/e Assuming independent assortment for the four genes, what fraction of progeny will have the same genotype as that of parent 2? O 1/2 O 1/4 1/8 O 1/16
1. Complete the Punnett square for a cross between a homozygous red-flowered snapdragon (RR) and a homozygous white-flowered snapdragon (WW). Give the ratio for the phenotype and the genotype. Key F1 Genotypic Ratio: RR – red Phenotypic Ratio: wW- white RW- pink 2. Complete the Punnett Square for a cross between two Fi plants (WW). Give the phenotypic ratio for the F2 generation. F2 Phenotypic ratio: 3. Cite some possible applications of genetics to plant breeding.
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1. The allele G for yellow stigma is completely dominant to green (g). Supposingtwo strains of autotetraploid plants are available and their genotypes are as follows:GGgg – in this plant the gene is close to the centromereGggg – in this plant the gene is far from the centromere If these two plants are crossed:a) provide the gametes that can be obtained from the two plants;b) provide the genotypic and phenotypic ratios of the offspring. 2. Consider the illustration below. Diagram the configuration you would observe at Anaphase I if crossing-over happens within the inversion. (IMAGE ATTACHED)
White fruit color in summer squash is dependent on a dominant gene (W) and colored fruit to the recessive gene (w). In the presence of ww a dominant gene produces yellow color, but when D is not present, the color is green. Give the F2 phenotypes and the proportions expected from crossing (show the diagram) a white-fruited (WWDD) with a green-fruited (wwdd) plant.