Let us recall your understanding of concepts of Mendel’s law of inheritance by predicting the possible offspring on a test cross using a Punnett square: Red tomato fruit (R) is dominant over yellow fruit (r). In a test cross between a homozygous red tomato fruit plant and a tomato plant that has yellow fruit, what would be the genotypes of the parents? Genotype: Phenotype: Questions: a. What are the genotypes of the offspring? b. What are the phenotypes? c. If two of the F1 generation from the above cross were mated, what would be the phenotypes and genotypes of the offspring?

Let us recall your understanding of concepts of Mendel’s law of inheritance by predicting the possible offspring on a test cross using a Punnett square: Red tomato fruit (R) is dominant over yellow fruit (r). In a test cross between a homozygous red tomato fruit plant and a tomato plant that has yellow fruit, what would be the genotypes of the parents? Genotype: Phenotype: Questions: a. What are the genotypes of the offspring? b. What are the phenotypes? c. If two of the F1 generation from the above cross were mated, what would be the phenotypes and genotypes of the offspring?

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter12: Mendel's Experiments And Heredity

Section: Chapter Questions

Problem 24CTQ: Mendel performs a cross using a true-breeding pea plant with round, yellow seeds and a true-...

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The text outlines some of the problems Frederick William I encountered in his attempt to breed tall Potsdam Guards. a. Why were the results he obtained so different from those obtained by Mendel with short and tall pea plants? b. Why were most of the children shorter than their tall parents?
Mendel performs a cross using a true-breeding pea plant with round, yellow seeds and a true- breeding pea plant with green, wrinkled seeds. What is the probability that offspring will have green, round seeds? Calculate the probability for the F1 and F2 generations.
Given a cross between these two parents: BbCcDDEEFfGgHhjj x BbCcddEeFfGgHHjj where traits B, E, H, J exhibit Mendelian inheritance; C, and F exhibit incomplete dominance; D, and G exhibit co-dominance answer the following: How many phenotypes can be expected from the cross?
Mendel crossed two Pea plants for plant height and flower color Tall plant (T) is dominant to Short Plant (t). Purple Flower (P) is dominant to white flower (p). Using the following information perform the dihybrid cross using punnett squares that will predict all possible genotypes of the offspring and list the number and description of the phenotypes of the offspring. A. One plant homozygous dominant for plant height and flower color crossed with another plant homozygous recessive for plant height and heterozygous for flower color.
Mendel crossed peas having round seeds and yellow cotyledons (seed leaves) with peas having wrinkled seeds and green cotyledons. All the F1 plants had round seeds with yellow cotyledons. Diagram this cross through the F2 generation, using both the Punnett square and forked-line, or branch diagram, methods.
shown are the F2 results of two Mendel's monohybrid crosses. Mendel crossed 2 heterozygote parents. If he were to expect segregation to happen normally, do the results match his expectations? state a null hypothesis that you will test using chi-square analysis. Calculate the chi-square value and determine the p value for both crosses a. Full pods: 882; constricted pods: 299 (full pods are dominant over constricted) b. violet flowers: 705; white flowers: 500 (violet dominant over white)
Using the concepts of non-mendelian genetics, what is the phenotypic ratio of the offspring if two heterozygous pea plants with purple flowers are crossed together? O 3 pea plants with light purple flowers: 1 pea plant with a single mixed color for white and purple color. O 3 pea plants with purple flowers: 1 pea plant with light violet flowers. O 1 pea plant with purple flowers: 2 pea plants with white flowers: 1 pea plant with mixed color for white and purple color. O 1 pea plant with purple flowers: 2 pea plants with light purple flowers: 1: pea plant with white flowers.
In which type of cross(es) can we apply and demonstrate the law of segregation and law of independent assortment? Why can’t we apply the 2 Mendelian laws on monohybrid crosses? Explain briefly. How can one use a pedigree chart to hypothesize how a certain condition is transmitted? Can a pedigree chart show probability of occurrence more accurately than the Punnett square? Why or why not?
If a homozygous tall pea plant is crossed with a homozygous shortpea plant, what are the possible genotype and phenotype of theoffspring? Legend: T- tall pea plant t- short pea plant Genotypes of the parents: TT x tt Question to answer ff: 1. What is the genotypic ratio? 2. What are the possible phenotypes of the offspring? 3. What is the phenotypic ratio?
In summer squash, white fruit color (W) is dominant over yellow fruit color (w) and disk-shaped fruit (D) is dominant over sphere-shaped fruit (d). If a squash plant true-breeding for white, but heterozygous for disk-shape fruit is crossed with a plant which is a dominant carrier for white, but homozygous sphere-shaped fruit. Following Mendel’s laws of heredity, what could be the phenotypic and genotypic proportion of the WwDD in the the first filial generation? a. wDD (heterozygous white with homozygous disk-shaped fruit) is 1% b. WwDD (heterozygous white with homozygous disk-shaped fruit) is 0 % c. WwDD (homozyzygous white with homozygous disk-shaped fruit) is 6.5% d. WwDD (heterozygous white with homozygous disk-shaped fruit) is 12.5 %
Which of the following statements are true regarding Mendel's observations of single factor crosses? All F2 offspring exhibit the dominant phenotype 3/4 of F1 offspring exhibit the dominant phenotype 3/4 of F2 offspring exhibit the dominant phenotype The segregation of alleles into the gametes of F1 offspring determines the ratio of phenotypes observed in the F2. The independent assortment of alleles into the gametes of F1 offspring determines the ratio of phenotypes observed in the F2. All F1 offspring exhibit the dominant phenotype
On the basis of Mendel’s observations (i.e. Mendelian patterns), predict the results from the following crosses with peas. Show the results in terms of genotypes, phenotypes, and their proportions in the offspring. The progeny of a tall (dominant and homozygous) variety crossed with a dwarf variety. The progeny of (a) self-fertilized. The progeny from (a) crossed with the original tall parent. The progeny of (a) crossed with the original dwarf parent.