Population Genetics and Human Evolution Complete the following discussions: The Hardy-Weinberg equilibrium states that allele frequencies...
Population Genetics and Human Evolution
Complete the following discussions:
The Hardy-Weinberg equilibrium states that allele frequencies remain constant across generations unless certain influences are introduced, such as nonrandom matings or mutations.
Describe the Hardy-Weinberg principle.
Are there influences that deviate from the principle? If so, what are they? If no, why?
Homework Answers
According Equilibrium law to Hardy-Weinberg , the frequency relative of alleles in the constant population remains from generation to generation in a population of sexually reproducing organisms:
(i) that accident of sampling may be ignored so The population is large enough.
(ii) randomly Mating takes place.
(iii) Always Mutation does not take place, in both directions the rate is same.
(iv) Have equal reproduction rates and All the members of the population survive equally.
Factors affecting the Hardy-Weinberg equilibrium:
Which affect the genetic equilibrium and induce the variability in the population there are five factors. These factors are called evolutionary agents.
(1) Mutations
(2) Recombinations during Sexual Reproduction
(3) Genetic Drift
(4) Gene Migration (Gene Flow)
(5) Natural Selection
Add Answer to:
Population Genetics and Human Evolution
Complete the following discussions:
The Hardy-Weinberg equilibrium states that allele frequencies...
Evolution 1. Assume this population is in Hardy-Weinberg equilibrium. In a population of 120 cats, 35...
Evolution
1. Assume this population is in Hardy-Weinberg equilibrium. In a population of 120 cats, 35 are black. Black cats have the bb genotype. Find the allelic frequency of the dominant and recessive allele. 2. Assume this population is in Hardy-Weinberg equilibrium. A litter of 10 puppies has both tipped ears (a) and floppy ears (A). If 4 puppies have tipped ears in the litter. What is the frequency of the recessive allele? 3. Assume this population is in Hardy-Weinberg...
The Hardy-Weinberg principle and its equations predict that frequencies of alleles and genotypes remain constant from generation to generation in populations that are not evolving
.1. The Hardy-Weinberg principle and its equations predict that frequencies of alleles and genotypes remain constant from generation to generation in populations that are not evolving. What five conditions does this prediction assume to be true about such a population? a._______ b._______ c._______ d._______ e._______ 2. Before beginning the activity, answer the following general Hardy-Weinberg problems for practice (assume that the population is at Hardy-Weinberg equilibrium).a. If the frequency of a recessive allele is 0.3, what is the frequency of the dominant...
help with question 3 & 4 please 3. The concept of Hardy-Weinberg equilibrium specifies five conditions...
help with question 3 & 4 please
3. The concept of Hardy-Weinberg equilibrium specifies five conditions under which Hardy Weinberg equilibrium will be violated and evolution will occur. Describe two conditions which generate random changes to allele frequency in a population. Describe one condition which generates non-random changes (adaptations) to allele frequency in a population. (6pts) 4. In a population of fish, short scales (s) is recessive to the wild-type condition of long scales (S). You isolate a population of...
The Hardy-Weinberg law describes the characteristics of a genetic population under ideal circumstances. This principle states...
The Hardy-Weinberg law describes the characteristics of a genetic population under ideal circumstances. This principle states that gene frequencies in a population, under ideal conditions, would: a. remain stable over time b. display directional selection c. develop zygomatic plasticity
EXP1- HARDY WEINBERG EQUILIBRIUM S01 197 Population Size 0.65 Generations Population Size Proportion Rallele Proportion rallele...
EXP1- HARDY WEINBERG EQUILIBRIUM S01 197 Population Size 0.65 Generations Population Size Proportion Rallele Proportion rallele Prop. Genotype Prop. RrGenotype Prop. RR Genotype 0.35 0.13 0.46 0.42 980 Generations Allele Proportion Genotype Proportions 980 Generations Rr RR Generations 500 193 Population Size Population Size Proportion Rallele Proportion rallele 0.57 0.43 0.22 Prop. Genotype Prop RrGenotype Prop. RR Genotype 0.41 0.37 Generations Genotype Proportions Allele Proportion 980 Generations Rr RR Use your results to explain if and how the allele frequencies...
2.3 Problem 3 The Hardy-Weinberg equation is useful for predicting the percent of a hu- man...
2.3 Problem 3 The Hardy-Weinberg equation is useful for predicting the percent of a hu- man population that may be heterozygous carriers of recessive alleles for certain genetic diseases. Phenylketonuria (PKU) is a human metabolic dis- order that results in mental retardation if it is untreated in infancy. In the United States, one out of approximately 10.000 babies is born with the disor- der. Approximately what percent of the population are heterozygous carriers of the recessive PKU allele? If you...
EXERCISE 6 HARDY-WEINBERG EQUILIBRIUM Work in a small group or alone to complete this exercise. In...
EXERCISE 6 HARDY-WEINBERG EQUILIBRIUM Work in a small group or alone to complete this exercise. In human population X consider the simple Mendelian trait for freckles. F is the dominant allele and fis the recessive allele. Individuals who are homozygous dominant (FF) or heterozygous (F) for the trait express freckles. Individuals who are homozygous recessive (ff) for the trait do not express freckles. In this population, 30% (0.3) of the alleles are recessive (1) and 70% (0.7) are dominant (F)....
We base our interpretation of evolutionary change in allele frequencies on predictions made using the Hardy-Weinberg Equilibrium (HWE) equation
2. We base our interpretation of evolutionary change in allele frequencies on predictions made using the Hardy-Weinberg Equilibrium (HWE) equation as a baseline hypothesis of "No change". Which one, of the following mechanisms of evolution tends to produce such small changes over time in large populations that is practically undetectable except of very long time periods in anyu case. a) Selection b) Migration c) Genetic Drift d) Inbreeding
genetics problem: 4.2. In the following sets of data, calculate allele and genotype frequencies in a...
genetics problem:
4.2. In the following sets of data, calculate allele and genotype frequencies in a assuming Hardy-Weinberg equilibrium; in b and c, test to see if the population is in H-W equilibrium): a) Allele A is dominant to a: 91 A-9 aa in population b) One hundred persons from a small town in Pennsylvania were tested for their MN blood types. The number of individuals with the particular genotypes was found to be: 41 MM, 38 MN, and 21...
Which of the following statements regarding the Hardy-Weinberg Equation is TRUE? Answers: It can only be u...
Which of the following statements regarding the Hardy-Weinberg Equation is TRUE? Answers: It can only be used when allele and genotype frequencies remain constant across generations in a population It can only be used when allele and genotype frequencies change across generations in a population It has no assumptions It mathematically shows how recessive alleles in a population decrease over time It reveals when allele frequencies change over time in a population Assuming Hardy-Weinberg Equilibrium, what percentage of individuals in...
Evolution
1. Assume this population is in Hardy-Weinberg equilibrium. In a population of 120 cats, 35 are black. Black cats have the bb genotype. Find the allelic frequency of the dominant and recessive allele. 2. Assume this population is in Hardy-Weinberg equilibrium. A litter of 10 puppies has both tipped ears (a) and floppy ears (A). If 4 puppies have tipped ears in the litter. What is the frequency of the recessive allele? 3. Assume this population is in Hardy-Weinberg...
help with question 3 & 4 please
3. The concept of Hardy-Weinberg equilibrium specifies five conditions under which Hardy Weinberg equilibrium will be violated and evolution will occur. Describe two conditions which generate random changes to allele frequency in a population. Describe one condition which generates non-random changes (adaptations) to allele frequency in a population. (6pts) 4. In a population of fish, short scales (s) is recessive to the wild-type condition of long scales (S). You isolate a population of...
EXP1- HARDY WEINBERG EQUILIBRIUM S01 197 Population Size 0.65 Generations Population Size Proportion Rallele Proportion rallele Prop. Genotype Prop. RrGenotype Prop. RR Genotype 0.35 0.13 0.46 0.42 980 Generations Allele Proportion Genotype Proportions 980 Generations Rr RR Generations 500 193 Population Size Population Size Proportion Rallele Proportion rallele 0.57 0.43 0.22 Prop. Genotype Prop RrGenotype Prop. RR Genotype 0.41 0.37 Generations Genotype Proportions Allele Proportion 980 Generations Rr RR Use your results to explain if and how the allele frequencies...
2.3 Problem 3 The Hardy-Weinberg equation is useful for predicting the percent of a hu- man population that may be heterozygous carriers of recessive alleles for certain genetic diseases. Phenylketonuria (PKU) is a human metabolic dis- order that results in mental retardation if it is untreated in infancy. In the United States, one out of approximately 10.000 babies is born with the disor- der. Approximately what percent of the population are heterozygous carriers of the recessive PKU allele? If you...
EXERCISE 6 HARDY-WEINBERG EQUILIBRIUM Work in a small group or alone to complete this exercise. In human population X consider the simple Mendelian trait for freckles. F is the dominant allele and fis the recessive allele. Individuals who are homozygous dominant (FF) or heterozygous (F) for the trait express freckles. Individuals who are homozygous recessive (ff) for the trait do not express freckles. In this population, 30% (0.3) of the alleles are recessive (1) and 70% (0.7) are dominant (F)....
genetics problem:
4.2. In the following sets of data, calculate allele and genotype frequencies in a assuming Hardy-Weinberg equilibrium; in b and c, test to see if the population is in H-W equilibrium): a) Allele A is dominant to a: 91 A-9 aa in population b) One hundred persons from a small town in Pennsylvania were tested for their MN blood types. The number of individuals with the particular genotypes was found to be: 41 MM, 38 MN, and 21...
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