1. Genome-wide Association studies can be used to find genes that contribute to a quantitative trait. True or False 2. Heritability of a trait is a characteristic of a population that won't change over time. True or False 3. Heritability for IQ might be high in one population in one population and low in a different population: True or False

1. Genome-wide Association studies can be used to find genes that contribute to a quantitative trait. True or False 2. Heritability of a trait is a characteristic of a population that won't change over time. True or False 3. Heritability for IQ might be high in one population in one population and low in a different population: True or False

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter19: The Evolution Of Populations

Section: Chapter Questions

Problem 5RQ: Population genetics is the study of: how selective forces change the allele frequencies in a...

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Create a fictional trait that Selection is acting against and describe: 1) What the trait consists of (i.e. a disorder, a physical characteristic, a behavior, etc). 2) The genotype or genotypes that express the trait 3) How the trait affects individuals with genotypes that do not express the trait (100 words minimum; no sources required)
Population genetics is the study of: how selective forces change the allele frequencies in a population over time the genetic basis of population-wide traits whether traits have a genetic basis the degree of inbreeding in a population
The effects of poverty, stress, racism, or socioeconomic status have not been conflated with the effects of genetics or ancestry. A. True B. False
Which of the following is true? Question 10 options: a) A person's phenotype is a trait that is the result of the environment only. b) A person's phenotype is a trait that is the result of genes only. c) A person's phenotype is a trait that is the result of genes and the environment. d) A person's genotype is a trait that is the result of genes and the environment.
A population is made up of individuals where 77 have the A1A1 genotype, 65 have the A1 A2 genotype, and 123 have the A2A2 genotype. What is the allele frequency of A1? Answer to 2 decimal places.
A student who has just learned about quantitative genetics says, “Heritability estimates are worthless! They don’t tell you anything about the genes that affect a characteristic. They don’t provide any information about the types of offspring to expect from a cross. Heritability estimates measured in one population can’t be used for other populations, so they don’t even give you any general information about how much of a characteristic is genetically determined. Heritabilities don’t do anything but make undergraduate students sweat during tests.” How would you respond to this statement? Is the student correct? What good are heritabilities, and why do geneticists bother to calculate them?
1) What is the most likely genotypes of the population rabbits living in northern Canada in 1850, if G is the allele for gray and g the allele for white? A) 85% g and 15% G B) 85% gg and 15% Gg C) 85% Gg and 15% Gg D) 85% GG and 15% gg Not Graded
please choose correct letter and explain why you choose it. thanks 1. which among the following types of selection for a trait with low heritability would yield the best response? a. individual selection b. famility selection c. within familty selection d. all will yield same response 2. Traits affected by many genes, with no single gene having an overriding effect? a. simply-inherited traits b. dominant traits c. polygenic traits d. recessive traits
There is a population of cats and 16% of the cats this population show a recessive trait. a. What is the frequency of the recessive allele? b. What is the frequency of the dominant genotype? c. What is the frequency of cats with the heterozygous genotype?
The allele for dark hair color is dominant (B). The allele for light hair color is recessive (b). If 1% of a population has light colored hair, and you know the population is at Hardy-Weinberg equilibrium, what proportion of alleles in the population are the recessive allele (b)?
Saying that a quantitative trait follows a continuum means thata. the numerical value for the trait increases with the age ofthe individual.b. environmental effects are additive.c. the phenotypes for the trait are continuous and do not fallinto discrete categories.d. the trait continuously changes during the life of an individual.
A survey was conducted for a certain trait (the ability to roll tongue or inability to roll the tongue) in a population. The result shows that 215 of the respondents can roll their tongue and 85 cannot roll their tongue. The picture below shows a person rolling his tongue. Rolling the tongue into a tube shape is often described as a dominant trait. If the dominant allele is represented by R (can roll tongue) and r represents the recessive allele, calculate the phenotypic frequencies, allele frequencies, the expected numbers of the three genotypic classes and the expected numbers of the two phenotypic classes (assuming random mating). Using chi-square test, determine whether or not this population is in Hardy-Weinberg equilibrium. REMEMBER: Genotype Phenotype HWE term RR and Rr Can roll tongue p2 and 2pq rr Cannot roll tongue q2 Again, follow the format below for your answers. Regarding letter “F” on the format, you will show the computations on how you arrive to the chi-square value…