Q: A characteristic has a narrow-sense heritability of 0.6.a. If the dominance variance (VD) increases…
A: Note - we answer one question at a time. Heritability is the variance proportion in a particular…
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A: Hi, Thanks For Your Question. Answer : Correct Option Is A ( Higher heritability value in the lab)
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A: Gregor Johann Mendel was an Augustinian monk. He worked on garden pea for the genetic experiment and…
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A: Heritability is a term used to describe the amount of phenotypic variation that can be attributed to…
Q: Given the following testcross data for corn in which the genes for fine stripe (f), bronze aleurone…
A: Given: The genes for a testcross (for corn) in which:fine stripe = (f),bronze aleurone = (bz)knotted…
Q: Why is the narrow-sense heritability more useful to plant and animal breeders than broad sense…
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Q: List all the components that contribute to the phenotypic variance and define each component.
A: Phenotypic variance is denoted by the symbol ‘Vp’ Phenotypic variance is used to calculate the…
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A: Introduction Heritability refers to the inheritance of the variations of the characters/phenotype…
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Q: What is the difference between broad-sense heritability and narrow-sense heritability? Why is…
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A: The gene is the primary unit of heredity for all life forms. The genotype of an organism stands for…
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A: In genetics, broad-sense heritability is defined as the proportion of variations in phenotype traits…
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Q: The broad-sense heritability of a trait is estimated at 0.6. If the total phenotypic variance is…
A: Heritability is the term that describes the proportion of the genetic variance to the total…
Q: A characteristic has a narrow-sense heritability of 0.6. a. If the dominance variance (VD) increases…
A: The part of the phenotypic variation that occurs because of the genetic variance including…
Q: Why would you expect to see a phenotypic variance greater than zero for these genetically identical…
A: Practically the phenotypic differences among the individuals in a population can be attributed to…
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Q: The mean, standard deviation, variances, and coefficient of variance of plant height from two rice…
A: Introduction The amount of phenotypic variance attributable to total genetic diversity for the…
Q: Two loci contribute to eyelash length in angora rabbits (locus A and B). Assuming additive…
A: Additive genetic variance means each allele that is inherited has a particular contribution to the…
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Q: Two inbred lines of rice are intercrossed. Variance in one parent is 5 g², but data for the other…
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Q: What is the mathematical expression for the genetic equilibrium for genes with two alleles? Is this…
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Q: You have used the Chi-Square Goodness of Fit test quite extensively. How useful do you find it in…
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Q: The mean and variance of Corolla length in two highly strains of tabacco and their progeny are shown…
A: The variation of an organism can be of both environmental and genetic factors. The phenotypic trait…
Q: I am confused.
A: Given: Total phenotypic variance = 100 Additive genetic variance = 30 Dominance genetic variance =…
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Q: The mean, standard deviation, variances, and coefficient of variance of plant height from two rice…
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A: Gregor Johann Mendel was a scientist known as the Father and Founder of Genetics. Mendel performed…
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Q: Figure 19-11 shows the expected distributions for thethree genotypic classes if the B locus is a QTL…
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Q: hy is the narrow sense heritability more useful to plant and animal breeders than broad sere…
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Q: Explain the component of phenotypic and genotypic variances
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A: Phenotypic variation refers to the differences in the phenotypes among different individuals in a…
Q: In a cross between two inbred lines of Drosophila, the F1 progeny has the phenotypic variance of…
A: Note - Since you have asked multiple questions, we will solve the first question for you. If you…
Q: If all the genetic variance in a character is additive, what is the value of narrow sense…
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Orchids come in an amazing variety of colours. Scientists found that cloned Cattleya orchids have a
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- How are the standard deviation and variance related to each other? How are they different than just measuring the range? Can plot samples of dandelion cover from two different locations have the same mean but different variance? Explain. Can you answer question 3? Thanks.Two loci contribute to eyelash length in angora rabbits (locus A and B). Assuming additive genetic variance and disregarding environmental effects, you determine that the following alleles contribute the following values to the total expression of lash length (in cm) A = 2.3, a=1.5, B=2.4, b=1.7 What would the phenotype of a rabbit with a genotype of AABb be? _________cmWe think that dwarfism in river birch might be inherited as a single-locus, simple Mendelain trait. We have taken a pure breeding normal plant and crossed it with a a pure breeding dwarf plant. The resulting plants were self-pollinated with the following results: Normal River Birch 805 Dwarf River Birch 246 Perform a chi square analysis on this data using the following hypothesis: The mode of inheritance for plant height in the river birch is simple Mendelian. Calculate the chi square value without rounding and then round your final answer to three decimal digits and put it in the space provided.
- The mean, standard deviation, variances, and coefficient of variance of plant height from two rice plants (P1 and P2) and their progeny (F1 and F2) and a backcross generation (P1 x F1) are shown below. Explain the possible reasons for the observed differences in the sample means. Account for the differences in the sample means of P1 and P2. Similarly, account for the differences in the sample means of the F1 and F2. Compare the difference in the parental generations with that in the filial generations.The mean and standard deviation of plant height from two rice plants (P1 and P2) and their progeny (F1 and F2) and a backcross generation (P1 x F1) are shown below. Compare the sample variances of P1 and P2. Account for any differences. Similarly, compare the sample variances of the F1 and F2 generations, and account for any differences. Give the possible causes of variation in each generation.What is the mathematical expression for the genetic equilibrium for genes with two alleles? Is this statistical distribution the same as the statistical distribution of the respective phenotypes?
- Seed size in a plant is a polygenic characteristic. A grower crosses two pure-breeding varieties of the plant and measures seed size in the F1 progeny. She then backcrosses the F1 plants to one of the parental varieties and measures seed size in the backcross progeny. The grower finds that seed size in the backcross progeny has a higher variance than does seed size in the F1 progeny. Explain why the backcross progeny are more variable.The mean, standard deviation, variances, and coefficient of variance of plant height from two rice plants (P1 and P2) and their progeny (F1 and F2) and a backcross generation (P1 x F1) are shown below. Calculate the broad-sense heritability of plant height in this species and interpret the results.Given the following testcross data for corn in which the genes for fine stripe (f), bronze aleurone (bz) and knotted leaf (Kn) are involved: PhenotypeNumber Kn + +451 Kn f +134 + + + 97 + f bz436 Kn + bz18 + + bz119 + f +24 Kn f bz86 Total:1,365 Maize geneticists tend to be like Drosophila geneticists utilizing a + to indicate the wild type allele (which also is dominant) and a lower case letter for the mutant allele (which is recessive). The first thing I suggest in attacking this problem is to use the typical convention of upper case letters for dominant alleles and lower case letters for recessive alleles as follows: F = wild type, f = fine stripe; B = wild type, b = bronze aleurone K = wild type, k = knotted leaf Then we can rewrite the phenotypes in a “language” that is more easily understood: PhenotypeNumber k F B451 k f B134 K F B97 K f b436 k F b18 K F b119 K f B24 k f b86 Total:1,365 a) Determine the sequence (order) of the…
- Sunflowers with flowers 10 cm in diameter are crossed with a plant that has 20-cm flowers. The F1 plants have flowers 15 cm in diameter. In the F2 generation, 4 flowers are 10 cm in diameter and 4 are 20 cm in diameter. Between these are 5 phenotypic classes with diameters intermediate to those at the extremes. a. Assuming that the alleles that contribute to flower diameter act additively, how many genes control flower size in this strain of sunflowers? b. How much does each additive allele contribute to flower diameter? c. What size flower makes up the largest phenotypic class?A pedigree analysis was performed on the family of a man with schizophrenia. Based on the known concordance statistics, would his MZ twin be at high risk for the disease? Would the twins risk decrease if he were raised in an environment different from that of his schizophrenic brother?In a cross between two inbred lines of Drosophila, the F1 progeny has the phenotypic variance of 0.87 for the number of abdominal bristles. The F2 generation has the phenotypic variance of 3. a)What is the environmental variance? __________ b)What is the genetic variance of the F2? __________ In a plant, height varies between 6 and 36 cm and is governs by 3 genes with wild-type alleles being additive. What would be the genotype of a plant16 cm in height? there might be multiple possible answers Name one mutation which is a suppressor of bri1-5