Describe how interactions and associations between genotypeand environmental factors may affect phenotypic variance.

Q: Which of the following is an example of how genotype and environmental factors can work together to…

A: The phenotypic expression is basically guided by the genotypic composition of an individual. however…

Q: Explain Twin studies of quantitative complex traits?

A: Twin studies are usually done in human genetic studies to understand the inheritance of quantitative…

Q: Which of the following statements about complex traits is/are TRUE?       Twin studies help to…

A: Introduction  Complex traits are also known as quantitative traits. Complex traits donot follow…

Q: Definesome of the statistical techniques used to study quantitative inheritance & multifactorial…

A: Multifactorial inheritance alludes to disorders brought about by various qualities and natural…

Q: Why do polygenic characteristics have many phenotypes?

A: by and large, most of the traits are controlled by only one gene ie one gene is responsible for only…

Q: A trait exhibits 100% concordance in both monozygotic and dizygotic twins. What conclusion can you…

A: Introduction : Monozygotic (MZ) twins are born when a single egg fertilized by a single sperm…

Q: calculate the narrow sense heritability of height between aunts and nieces if the obscured phenotype…

A: Introduction :- Animals with high values for one phenotype also tend to have high (or low) values…

Q: a. What is a complex trait? How many genes do we expect to affect a complex trait? b. How linkage…

A: Hi, thank you for your question. Since we are entitled to answer only one question at a time, I…

Q: Explain the role of environmental factors in the production of phenotypes ?

A: Phenotype is defined as the observable physical properties and features of an organism that will…

Q: Understand the meaning of broad-sense heritability?

A: The degree of variation in the specific phenotype as a result of genetic variation among the…

Q: What are the similarities and the differences between codominance and incomplete dominance? What are…

A: Codominance and Incomplete dominance are two kinds of hereditary inheritance. Codominance basically…

Q: discuss the interaction of heredity and environment inproducing individual traits.

A: In ecology, heredity is defined as the inheritance of biological traits or characteristics from one…

Q: What does a heritability score tell us about HOW genes and environment interact in an individual to…

A: Heritability is the measure of how well differences in peoples genes account for differences in…

Q: Name several factors that influence variation incomplex traits.

A: A trait is defined as a specific characteristic of an organism. It is studied under the genetics of…

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…

Q: Explain how the phenotypes for incompletely dominantand codominant traits differ from…

A: Introduction  Any gene have two alleles pairs viz. Dominant or Recessive. The allele which gets…

Q: Explain about genotype-by-environment interaction variance ?

A: The phenotype and physiological functioning of an organism are dependent on the genetic makeup of…

Q: Are the following statements regarding heritability true or false?A. Heritability applies to a…

A: Heritability is the degree of variation in a phenotypic trait in a population that is due to genetic…

Q: Which are the components of phenotypic variance?

A: Phenotypic variance is defined as the change in the gene expression in response to the environmental…

Q: explain how polygenic inheritance and environmental influences combine to produce nearly continuous…

A: "Polygenic inheritance" includes the expression of many characters from different genes due to the…

Q: Briefly explain how the number of genes influencing a polygenic trait can be determined.

A: Polygenic traits are controlled by more than one gene. The gene may be located on same chromosomes…

Q: Summarize the meaning of phenotypic variance

A: The condition of being different, divergent, or having a degree of divergence is known as the…

Q: How do we know that threshold traits are actually polygenic even though they may have as few as two…

A: In many polygenic traits, the continuous phenotypic distribution results from an incremental…

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: Describe the roles genetics and the environment play in determiningphenotypes

A: A “phenotype” is such a character of someone that an individual can observe from outside. Genes…

Q: Outline experiments that would allow you to distinguish genetic and environmental influences on…

A: Introduction  Heritability refers to the inheritance of the variations of the characters/phenotype…

Q: Explain MZ and DZ twin concordance for complex discrete traits?

A: MZ stands for monozygotic twins. They are also called identical twins and are developed due to…

Q: What contribute to the phenotype in a cumulative or quantitative way ?

A: The distribution for a large population in which the trait of interest varies in a symmetrical way…

Q: Explain about the important factor contributing to overall levels ofphenotypic variation ?

A: The observable physical characteristics of an organism is called its phenotype. Eye colour, hair…

Q: What are the Environmental effects on phenotype?

A: Phenotype is the morphological manifestation of genotype. It includes the morphological features…

Q: Which of the following best describes the broad-sense heritability of a trait? Variance in the trait…

A: Broad sense heritability - It is the proportion of variation in phenotype which  characterise the…

Q: Explain the components of phenotypic and genotypic variances

A: Genetic variation is the difference in the sequence of DNA between individuals in a population. It…

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: How do some differences in the outcomes for sets of gametes produced illustrate Mendel's laws of…

A: The Mendel's laws of inheritance include law of dominance, law of segregation and law of independent…

Q: Briefly outline some of the ways in which heritability can be calculated.

A: Heritability is defined as the amount of observable variation (phenotypic variation) in a given…

Q: What are the Effects of phenotypic variation

A: Phenotypic variations are nothing but expressions of genotypic variations. These variations arise as…

Q: Two genes can interact in which several ways to determine a single trait?

A: Genetic Interaction – The process in which two or more genes interact with each other in order to…

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: Environmental factors determine the impact of the phenotype of the quantitatively inherited trait.…

A: The quantitative traits are those that exhibit continuous variability in their phenotypes. These…

Q: complex trait, concordance, environmental variance.

A: Complex trait: Complex trait is a trait which does not follow Mendelian inheritance patterns. This…

Q: 1) Explain briefly what an; i) Allele II)  Lethal genes III) Sex links IV) Sex limited and sex…

A: we are supposed to answer only the first question in case of multiple question posted or only first…

Q: If the frequency of the aa genotype is 19%, what is the frequency of the AA genotype? Assume that…

A: According to Hardy-Weinberg principle, genotype frequencies and alleles in a population remain the…

Q: What is one-way genetic background can affect phenotypic expression?

A: Phenotypes are the characteristic traits expressed by an individual. Whereas genotype is the genetic…

Q: Briefly describe common misunderstandings or misapplications of the concept of heritability

A: Heritability refers to the statistic term that determines the extent of a phenotypic trait variation…

Q: Explain the component of phenotypic and genotypic variances

A: Phenotype : physical characteristics Genotype : genetic constitution in the form of allelic…

Q: Explain narrow-sense heritability (h2)?

A: Heritability is defined as the amount of phenotypic variation in a population, which attributes to…

Q: Explain how a comparison of concordance in monozygotic and dizygotic twins can be used to determine…

A: The reproduction can be defined as the process of production of offspring by the parents. The…

Q: What is a Sex-Linked Trait? Why are they noted differently than other alleles when completing…

A: A sex-linked trait is a trait whose alleles are present on the sex chromosomes.