In corn, kernel color is controlled by Gene K, with the dominant K allele producing colorful kernels and the recessive k allele producing colorless kernels. Likewise, plant color is controlled by Gene P, with the dominant P allele producing green plants and the recessive p allele producing yellow plants. Suppose you cross a heterozygous corn plant with a homozygous recessive corn plant. a. Write the genotypes of the parents in the cross. b. Write the possible gametes produced by the heterozygous parent. С. Write the possible gametes produced by the homozygous parent.

In corn, kernel color is controlled by Gene K, with the dominant K allele producing colorful kernels and the recessive k allele producing colorless kernels. Likewise, plant color is controlled by Gene P, with the dominant P allele producing green plants and the recessive p allele producing yellow plants. Suppose you cross a heterozygous corn plant with a homozygous recessive corn plant. a. Write the genotypes of the parents in the cross. b. Write the possible gametes produced by the heterozygous parent. С. Write the possible gametes produced by the homozygous parent.

Name: 5. In corn, kernel color is controlled by Gene K, with the dominant K
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Description: 5. In corn, kernel color is controlled by Gene K, with the dominant K allele producing colorfulkernels and the recessive k allele producing colorless kernels. Likewise, plant color is controlledby Gene P, with the dominant P allele producing green p

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

Chapter13: Genes, Chromosomes, And Human Genetics

Section: Chapter Questions

Problem 8TYK: Another gene in Drosophila determines wing length. The dominant wild-type allele of this gene...

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The following pedigree shows the pattern of inheritance of red green color blindness in a family. Females are shown as circles and males as squares; the squares or circles of individuals affected by the trait are filled in red. What is the chance that a son of the third-generation female indicated by the arrow will be color-blind if the father is a normal man? If the father is color-blind?
5. In corn, kernel color is controlled by Gene K, with the dominant K allele producing colorful kernels and the recessive k allele producing colorless kernels. Likewise, plant color is controlled by Gene P, with the dominant Pallele producing green plants and the recessive p allele producing yellow plants. Suppose you cross a heterozygous corn plant with a homozygous recessive corn plant. a. Write the genotypes of the parents in the cross. b. Write the possible gametes produced by the heterozygous parent. c. Write the possible gametes produced by the homozygous parent. d. Fill in the following table: Possible heterozygote gametes Possible offspring genotypes (if crossed to homozygous recessive) Possible offspring phenotypes
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)
1. In Drosophila melanogaster (fruit fly) experiment, if we are going to cross male and female red-eyed fruit flies, we have the resulting offspring ratio of 50% red-eyed for female, 25 % for red-eyed male and 25% for white-eyed male. Females which are either homozygous or heterozygous for a trait still expressed eye redness whereas males can easily be affected. Why is this so? a. Females are the carriers of a gene for eye redness b. Y chromosome is responsible for red eyes in fruit flies, c. The gene for eye redness is an X-link dominant trait, d. Having a red-eyed trait is dominantly expressed by females
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?
2. a. A Drosophila male from a true-breeding stockwith scabrous eyes was mated with a female from atrue-breeding stock with javelin bristles. Both scabrous eyes and javelin bristles are autosomal recessive mutant traits. The F1 progeny all had normaleyes and bristles. F1 females from this cross weremated with males with both scabrous eyes andjavelin bristles. Write all the possible phenotypicclasses of the progeny that could be produced from the cross of the F1 females with the scabrous, javelin males, and indicate for each class whether it is arecombinant or parental type.b. The cross in part (a) yielded the following progeny:77 scabrous eyes and normal bristles; 76 wild type(normal eyes and bristles); 74 normal eyes andjavelin bristles; and 73 scabrous eyes and javelinbristles. Are the genes governing these traits likelyto be linked, or do they instead assort independently? Why?c. Suppose you mated the F1 females from the crossin part (a) to wild-type males. Why would thiscross fail…
1. The lubber grasshopper is a very large grasshopper and is black with red and yellow stripes. The alleles for red and yellow stripes are co-dominant. Assume that red stripes are expressed from the homozygous RR genotype, yellow stripes from the homozygous YY genotype, and both from the heterozygous genotype RY. a. How many of each genotype will be found in the F1 generation resulting from a cross of two grasshoppers, both with red and yellow stripes? b. How many of each phenotype?
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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?
5. In cattle, roan color (mixed red and white hairs) occurs in the heterozygous (Rr) offspring of red (RR) and white (rr) homozygotes. When two roan cattle are crossed, the phenotypes of the offspring are found to be in the ratio of 1 red: 2 roan: 1 white. a) What cross could produce the highest percentage of roan cattle? b) How would one produce a herd of pure-breeding roan-color cattle? Explain
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6. In corn plants, a dominant allele I inhibits kernel color, while the recessive allele i permits color when homozygous. At a different locus, the dominant gene P causes purple kernel color while the homozygous recessive pp causes red kernels. If a plant that is heterozygous at both loci is crossed with a plant that has red kernels, what will be the phenotypic ratio of the offsprings?