5. The scatterplots show the relationship between the average phenotype of parents (x- axis) and that of their offspring (y-axis) for two traits in a variety of tropical sweet corn. One trait is stalk height, which has a heritability of 75%; and the other is ear length, which has a heritability of 25%. Which scatterplot does represent stalk height? Please briefly justify your answer. 3 3 Trait K Trait Q -1 -2 -3 -3 -3 -2 -1 2 -2 -1 Mean of parents Mean of parents Blology: How Life Works, Third Edition O 2019 Macmillan Learning A) Ear length and stalk height are both trait Q B) Ear length is trait Q, and stalk height is trait K. C) Ear length and stalk height are both trait K. D) Ear length is trait K, and stalk height is trait Q. Mean of offspring Mean of offspring 2.

5. The scatterplots show the relationship between the average phenotype of parents (x- axis) and that of their offspring (y-axis) for two traits in a variety of tropical sweet corn. One trait is stalk height, which has a heritability of 75%; and the other is ear length, which has a heritability of 25%. Which scatterplot does represent stalk height? Please briefly justify your answer. 3 3 Trait K Trait Q -1 -2 -3 -3 -3 -2 -1 2 -2 -1 Mean of parents Mean of parents Blology: How Life Works, Third Edition O 2019 Macmillan Learning A) Ear length and stalk height are both trait Q B) Ear length is trait Q, and stalk height is trait K. C) Ear length and stalk height are both trait K. D) Ear length is trait K, and stalk height is trait Q. Mean of offspring Mean of offspring 2.

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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8. Kernel color in wheat is controlled by 2 pairs of genes (AABB). Determine the color of the offspring with the following genotypes: (Note: 4 contributing alleles – red; 3 contributing alleles – medium red; 2 contributing alleles – intermediate red; 1 contributing allele – red; and 0 – white AAbb x AaBb AABb x Aabb aaBb x Aabb AABb x aabb AABb x AaBb A wheat plant producing medium red seed is crossed with another plant producing intermediate red seed (refer to problem no. 8). How many individuals will be? Red Medium red Intermediate red Light red White
1. In the milotypes of wheat, 4 recessive genes for height have been identified. They have been designated as h1, h2, h3, and h4. A plant homozygous recessive for these 4 pairs of genes is 21inches tall, while a plant homozygous dominant for these 4 pairs of genes is 45 inches tall. Assume that these alleles contribute quantitatively, cumulative and equally for the height difference. A plant breeder crossed plants with genotypes of H1H1H2H2h3h3h4h4 and h1h1h2h2h3h3H4H4. Both F1 and F2 generations were observed. a. What are the heights of the parents? b. What would be the heights of the F1 plants? c. Enumerate the range of heights that you can expect in the F2 generation. Also, indicate the expected number of plants of each height. d. What would be the expected mean height of the F2 progeny?
Please answer the following problem.- A wide-ranging survey of Nicotonia growing in its natural environment recorded a variation in corolla length ranging from 12mm to 47mm with a variance of 36.5. Subsequently, collected seeds were grown in a greenhouse and it was found that the range was now very much lower with most plants having similar corolla lengths and the variance was now only 8.4. ALL WORKING MUST BE SHOWN. a) What is the heritability of corolla length? b) After the plants had grown to maturity and formed seed, seeds were collected from plants with either the shortest and or the longest corollas in the population and planted separately in the greenhouse, When flowers were formed it was found that the variance of the plants with the shortest flowers was now 4.2 while that of the flowers from the longest seeds had become 13.7 Calculate the new values for heritability in the different groups of plants and explain why this difference may arise.
1. For a single locus with two alleles, A₁ and A₂: (a) Draw a graph (using graph paper) showing both the frequency of A₁ A2 heterozy- gotes and A₂ A₂ homozygotes, at Hardy-Weinberg frequencies, as functions of p (the frequency of A₁). Note that both p and the genotype frequencies should have values between 0 and 1. (b) Find the value of p above which A₁ A2 genotypes are more common than A₂42 genotypes. You can solve this algebraically, or estimate it from your graphs. 2. Consider three loci, A, B, and C, each with two alleles, with the frequencies of A₁, B₁, and C₁ all being We look at a population and find that there are four distinct haplotypes, shown here, each with a frequency of: A₁ B1 TT A1 C₁ B1 A₂ B₂ AT C₂ A₂ B₂ C₁ C₂ Of the three pairs of loci (AB, AC, and BC) which pair(s) are in Gametic Equilibrium (D = 0) and which are in Gametic Disequilibrium (D ‡0)? [Hint: Consider each pair separately, ignoring the other locus. For example: for the BC pair, consider the four…
dd-ons Help в I U A Calibri 12 三三1 |:三 6. Consider a guinea pig with a homozygous genotype and a white fur color phenotype. a. What is the probability this parent will produce a gamete with the dominant allele? b. What is the probability this parent will produce a gamete with the recessive allele? C. If 31 sperm cells are collected from this guinea pig, how many would you expect to have the recessive allele (as determined by sequencing the gene)? !!!
31. In a line of cherry tomatoes, the average fruit weight is 12 grams. A plant producing tomatoes with an average of 7 grams is used in one self-fertilization cross to produce a line of smaller tomatoes, and a plant producing tomatoes of 21 grams is used in a second cross to produce larger tomatoes. What is the selection differential (S) for the fruit weight in each cross? If narrow-sense heritability (h2) for this trait is 0.7, what are the expected responses to selection (R) for fruit weight in the crosses?
A wide-ranging survey of Nicotonia growing in its natural environment recorded a variation in corolla length ranging from 12mm to 47mm with a variance of 36.5. Subsequently, collected seeds were grown in a greenhouse and it was found that the range was now very much lower with most plants having similar corolla lengths and the variance was now only 8.4. ALL WORKING MUST BE SHOWN 1. What is the heritability of corolla length?
4. In the garden pea, yellow cotyledon color is dominant to green, and inflated pod shape is dominant to the constricted form. Considering both of these traits jointly in self-fertilized dihybrids, the progeny appeared in the following numbers: 193 green, inflated 184 yellow constricted 556 yellow, inflated 61 green, constricted Do these genes assort independently? Support your answer using Chi-square analysis. Category Expected Observed Expected Deviation Deviation d ratio (0) (E) (0-E) (d) E Yel, infl 9/16 556 Grn, infl 3/16 193 Yel, con 3/16 184 Grn, con| 1/16 61 Total = X'= df= Table: 18 points Interpolation : 8 points Interpretation: 2 points 28 points Interpolation and Interpretation:
Highlight Draw ソeu र In guinea pigs, short hair is dominant over long hair. If a short haired SS guinea pig is erossed with a long haired ss guinea pig, what are the possible genotypes and phenotypes of their offspring and the percent chance of each? 3. S Fill in the table: Genotype Phenotype Chance
1. Set up a punnett square using the following information: 2. Using the punnett square in question #1: a. What is the probability of producing tall plants with purple flowers? Dominate allele for tall plants = D • Recessive allele for dwarf plants = d • Dominate allele for purple flowers = W • Recessive allele for white flowers = w Cross a homozygous dominate parent (DDWW) with a homozygous recessive parent (ddww) Possible genotype(s)? b. What is the probability of producing dwarf plants with white flowers? Possible genotype(s)? c. What is the probability of producing tall plants with white flowers? Possible genotype(s)? d. What is the probability of producing dwarf plants with purple flowers? Possible genotype(s)?
2. The leaf width of a particular plant has an environmental variance of 2.3 cm, an epistatic variance of 4.8 cm, a dominance variance of 1.6 cm, and an additive variance of 3.8 cm. Determine, and interpret, the broad sense and narrow sense heritability.
true for false? 1a) In Drosophila flies, there are wing shapes such as curly, apterous, miniature and others. These would be considered continuous traits (as opposed to discontinuous traits). 1b) The reason we assess the narrow sense heritability is because there are hidden genetic components that are simply too difficult to include in the calculation of VG 1c) You can figure out the heritability of a trait if you compare the variation of the trait in a clonal population of organisms to a wild type (heterogeneous) population.