In a horse population, three different traits showing continuous distribution were measured, and their variances are shown in the table below:

Q: Given the below information, what is the narrow-sense heritability for this trait? VA 0.22 Vp 0.75…

A: The narrow-sense heritability is the ratio of additive genetic variance(VA) to total phenotypic…

Q: The following variances were calculated for two traits in a herdof hogs.Trait                 VP…

A: Environmental and genetic factors are responsible for the variations seen in the phenotype of…

Q: Pairs of genetically related people were examined with regard to the rate at which they metabolize…

A: The percentage of phenotypic diversity that results from genetic variations among individuals within…

Q: In a population of 100 inbred, genotypically identical rice plants, variance for grain yield is…

A: (a)In the given case, there is no variation in phenotypic traits and the population is inbred. Any…

Q: Estimates of narrow-sense heritability are useful for which of the following? O a) Determining the…

A: Heritability is the statistical measure used in quantifiable genetics. It can be of two forms. Broad…

Q: Variance in back fat & body length were calculated in a heard of hogs and summarized in the table…

A: Heritability refers to the measure of quality being transmitted from parent or offspring. there are…

Q: In a population of Boer goats, allele G confers +10kg body weight and allele g confers +5kg body…

A: The understanding of genetic and breeding values is crucial in animal breeding programs aimed at…

Q: If the environmental variance increase and the genetic variance components remain the same what will…

A: Phenotypic variance is the variation in a trait among individuals in a population.Genetic variance:…

Q: Which parameter listed below is most important to the success of a selective breeding program?…

A: Breeding in simple terms refers to the process of reproduction, which gives rise to new offsprings.…

Q: Viruses are capable of infecting bacteria by injecting their DNA into the bacterial cells. This was…

A: Viruses are capable of infecting bacteria by inserting their DNA into the bacterial cell. This…

Q: Gray tree frog (Hyla versicolor) males call to females, and their calls can be characterized by the…

A: Additive genetic variance is a component of the total genetic variance in a population that arises…

Q: In a population of 235 individuals, it was observed that 200 were found to be (AA), 30 were found to…

A: Finding the frequency of the (A) & (a) alleles:

Q: c) If no genetic variation was observed within a particular population for a given trait, what will…

A: The percentage of a characteristic that may be accounted for by genes in a particular population is…

Q: When alleles at a locus act in a semidominant fashionon fitness, the relative fitness of the…

A: Semidominant allele is one in all a series of terms applied to the phenotypical impact of a specific…

Q: In a study of coat colour in beach mice, researchers measured the darkness of the fur on the backs…

A: Introduction  All of an organism's observable traits, or phenotype, are the outcome of the interplay…

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: Assume that these two loci are the only sources of additive genetic variance for body mass. The…

A: Body mass is a complex trait that is influenced by both genetic and environmental factors. The…

Q: Calculate the probability of families with the following children:   2 boys and 3 girls? 4 boys…

A: The formula that can be used to find the probability is: P= n!x! y ! px qy where, P = probability…

Q: In a population of geese, the narrow-sense heritability for wing span is shown to be 0.5. If the…

A: The formula that can be used to calculate narrow-sense heritability is equal to: h2=VAVP Here h2…

Q: The broad-sense heritability of body size (thorax length) was calculated from a natural population…

A: In this question, we have to find the genetic variance using broad sense heritability of body size…

Q: What do we use to estimate the heritability of a trait in this exercise? Group of answer choices The…

A: Heritability refers to how well genetic differences account for variances in people's attributes. A…

Q: Explain the relationship among phenotypic variance, geneticvariance, and environmental variance…

A: Variance is defined as difference between two or more cells, organisms, their genotype, phenotype,…

Q: In the following table, average differences of birth height, birth weight, and IQ score between…

A: Heritability may be a way to measure what proportion a trait is caused by genes during a group of…

Q: You are selecting for mice with high blood glucose levels. The population has a mean level of…

A: Narrow sense heritability helps in determining the additive genetic effect where the offspring's…

Q: Calculate the allele frequencies of A and a in the following population. AA individuals 50, Aa…

A:

Q: In a population of chickens, egg weight exhibits a narrow-sense heritability of 0.82, with an…

A: The narrow sense of heritability measures the fraction of the phenotypic variance which is due to…

Genetic Variation

Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.

Quantitative Genetics

Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.