A mathematical model has been derived for selection against the homozygous recessive genotype. The following equation was obtained, where g is the frequency of the a allele, and s is the selection coefficient for the aa genotype (the selection coefficient for the AA and Aa genotypes is 0): q(1– sq) 1- są If the selection coefficient is 0.3 and the initial frequency of the a allele is 0.8, what is the new frequency of the a allele after one generation of random mating?

Q: What are the observed genotypic frequencies for Wildrose at the pt-8 locus? and What are the…

A: The observed genotypic frequencies for Wildrose at the pt-8 locus are: 0.25 for PP, 0.50 for Pp, and…

Q: In an assessment of learning in Drosophila, flies were trained to avoid certain olfactory cues. In…

A: Heritability could be a concept that summarizes what quantity of the variation during a trait is…

Q: Describe in your own words what variance measures.  Then explain why the variance of both samples…

A: The variance is a metric for determining how variable something is. The average of squared…

Q: A wide-ranging survey of Nicotonia growing in its natural environment recorded a variation in…

A: In this question, we have to find out the broad–sense heritability. Here, we are provided with the…

Q: Find the mean height of a population of palm trees with the following information: Trees with…

A: The extent to which a trait changes in a population as a result of selective breeding or natural…

Q: student crossed a female worm homozygous for the dpy-17 e164 allele with a wild-type male worm…

A: Chi square test is a statistical test which is used to check whether there is significant difference…

Q: In an experiment focusing on weight gain between ages 3 and 6 weeks in mice, the difference in mean…

A: The basic physical and functional unit of heredity is the gene. DNA is the material that makes up…

Q: Which of the following applies to the Hardy-Weinberg expression:p2 + 2pq + q2?a. Knowing either p2…

A: Hardy Weinberg equilibrium is a imaginary which considers if there is no evolution then the…

Q: Suppose you are studying the incidence of low lipoprotein lipase activity among 100 pairs of first…

A: Introduction  Hereditary refers to the transmission of traits or characteristics from one generation…

Q: An investigation of shrew tail length showed that the length of tails varied from 24mm to 66mm. In…

A: Heritability is a term used to describe the amount of phenotypic variation that can be attributed to…

Q: You have recently done a three point cross and made a genetic map. Using the data shown below, you…

A: Total number of individuals = 465

Q: A wide-ranging survey of Nicotonia growing in its natural environment recorded a variation in…

A: Variation is a difference between the cells, individual organisms, or groups of organisms of any…

Q: Considering hybridization in a given trait like the color of the hair of a mammalian species…

A: Hybridization occurs when the offsprings carry the combined form of genes of their parents. The…

Q: Regarding the analysis of single marker STR results used in forensic science. Tick all the correct…

A: The true statements among the given statements are:  If a suspect's alleles are different from those…

Q: Please assess the lowercase-Roman-numeral-labelled statements that appear immediately below and…

A: The fact that the CCR5-delta 32 mutation is only found in Europe, according to Professor Duncan,…

Q: Note: a. genotype of the parents b. Punnett square, genotypic ratio, and phenotypic ratio c. type of…

A: Johannsen gave the terms phenotype and genotype.  Phenotype can be explained as the morphological…

Q: Note: a. genotype of the parents b. Punnett square, genotypic ratio, and phenotypic ratio c. type of…

A: An individual's genotype determines his or her phenotype. The alleles a person inherits from their…

Q: What is the predicted response to selection (R) if the narrow-sense heritability, h2, is 0.5 and the…

A: Narrow - sense heritability (h2 ) = 0.5 selection differential (S) = 0.8 selection (R) can be…

Q: Which of the following interpretations for the missing hereditary are reasonable? 1. The reported…

A: The "missing heritability" problem is the fact that single genetic variations cannot account for…

Q: Using the product rule, what is the total frequency of the profile, given the following genotype…

A: Allele frequencies inherit in a Mendelian inheritance pattern. The frequency of occurrence can be…

Q: What is the genetic distance between the eye colour locus (w) and the bristle locus (sn)? answer in…

A: Introduction: Drosophila is a genus of small flies, commonly known as fruit flies. They belong to…

Q: In domestic chicken, feather colour and shape are two traits which are controlled by autosomal…

A: The gene is the primary unit of heredity for all life forms. The genotype of an organism stands for…

Q: Applying the Hardy-Weinberg equilibrium. In a population of flowers, the following color…

A: According to the Hardy-Weinberg principle,  p2 +2pq + q2 = 1 where, p =allelic frequency of…

Q: To analyze: Imagine the length of the maize ears which has narrow sense heritability (h²) of 0.70 A…

A: Heritability refers to the degree to which genetic variation influences phenotypic variance in…

Q: What does codominance mean in genetics? Select one: O a. Both alleles are expressed only when they…

A: Codominance in genetics refers to a situation where the two alleles are expressed in the phenotype…

Q: In population genetics, for a locus with two alleles, we use the variable q to indicate. Freq(A),…

A: Hardy Weinberg equilibrium is a imaginary which considers if there is no evolution then the…

Q: Briefly describe the polygenic threshold theory.

A: As per the honor code, we answer only one question at a time, therefore, we are answering the first…

Q: = expressing dominant mutant trait, caused by the "A*" allele expressing recessive mutant trait,…

A: "Genetics" is the study of the functioning and main codes of variation and heredity. Inheritance is…

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: Instruction: Fill up the table by computing the dominant alleles, recessive alleles and the…

A: According to Hardy Weinberg equilibrium- p2 + 2pq + q2= 1 and p+q= 1 p = frequency of the dominant…

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…

Q: 5. What is the homozygous dominant frequency? 6. What is the heterozygous frequency? 7. What is…

A: The Hardy-Weinberg equilibrium is a theoretical concept that describes how the frequency of alleles…

Q: Given the following pedigree (note that C7C, M4C, N2X, H6C, G9X, J1C, B8X, and P2X are the names of…

A: The degree of genetic relatedness or similarity between two alleles at a certain location within an…

Q: Specimen Trail 1 Trail 2 Trail 3 Trail 4 Trail 5 Parent 1 Genotype FF Ff Ff Ff Ff Parent 2 Genotype…

A: Genotype is the genetic features and phenotype is the physical features of an organism.

Q: 3. What are the expected genotype and phenotype ratios in the following genetic conditions? Use…

A: Dihybrid cross is a cross between two hybrid individuals with two traits. Below is the table for…

Q: Will further artificial selection be a useful way to change shrew tail length?

A: Artificial selection is also called as  selective breeding. It is the process by which humans use…

Q: To locate genes associated with quantitative traits, geneticists often use QTL mapping (see the…

A: Quantitative trait locus refers to a section of DNA (deoxyribonucleic acid) that corresponds to…

Q: true for false?   1a) In Drosophila flies, there are wing shapes such as curly, apterous,…

A: Genes are the unit of hereditary that is coded on the strand of DNA. These codes express themselves…

Q: allele frequency or genotype/phenotype frequency. Then determine which equation is appropriate.…

A: Hardy Weinberg equilibrium states that the genetic variation in a population remains constant from…

Q: ADHD is a highly heritable trait with published broad sense heritability estimates in the range of…

A: ADHD is Attention Deficit Hyperactivity Disorder.Evaluating the heritability of a trait like ADHD…

Q: Match the variables of the Hardy-Weinberg equilibrium equation (p2 + 2pq + q² = 1) with %3D…

A: Hardy Weinberg Equation  Hardy Weinberg principal, equation, law, theorem state the in the absence…

Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.