High school Biology aid » Genetics and Evolution » Genetics principles » Hardy-Weinberg Equilibrium
Explanation:

Hardy-Weinberg equilibrium has a set of conditions that have to be met in order for the populace to have actually unchanging gene pool frequencies. There must be random mating, no mutation, no migration, no organic selection, and also a big sample size.

You are watching: Which of these conditions is not among the requirements of the hardy-weinberg equilibrium?

It is not necessary for the population to it is in at delivering capacity. The population can thrive or shrink while preserving the gene pool.


A varieties of bird has an allele for black color feathers and an allele for blue feathers. Which of the adhering to scenarios would certainly violate the necessary problems for Hardy-Weinberg equilibrium in a populace of this species?


Correct answer:

Birds v black feathers prefer to mate through birds the have similarly colored feathers


Explanation:

If a populace is in Hardy-Weinberg equilibrium, over there is no evolution following in the population. Among the violations of Hardy-Weinberg equilibrium is selective mating. If birds favor to mate through others that are similarly colored, then Hardy-Weinberg equilibrium is violated and the gene pool in the populace is changing.

Hardy-Weinberg needs no migration, arbitrarily mating, large population size, no organic selection, and also no mutation.


Which the the adhering to is not one of the significant causes the evolutionary change as outlined through Hardy-Weinberg equilibrium?


Explanation:

The Hardy-Weinberg principle is a mathematical design proposing that, under particular conditions, the allele frequencies and also genotype frequencies in a sexually reporoducing populace will remain constant over generations. Because that this principle to host true, evolution must basically be stopped. The problems to preserve the Hardy-Weinberg equilibrium are: no mutation, no gene flow, big population size, arbitrarily mating, and no organic selection.

The Hardy-Weinberg equilibrium can be disrupted by deviations from any kind of of its five main underlying conditions. Because of this mutation, gene flow, little population, nonrandom mating, and also natural choice will disrupt the equilibrium.

Differentiation is the procedure whereby relatively unspecialized cells become committed into specific tissue types. This is a standard procedure in organismal development, and also is generally unrelated to evolution principles.


Report an Error

Example concern #1 : expertise Hardy Weinberg problems


Which of the following is NOT among the presumptions made by Hardy and also Weinberg about Hardy-Weinberg equilibrium?


Possible Answers:

Random mating


No spontaneous mutations


All of this are assumptions made by Hardy and also Weinberg in their equilibrium model.


No immigrant or emigration 


The population size is large


Correct answer:

All of these are presumptions made by Hardy and Weinberg in your equilibrium model.


Explanation:

All of the answer selections are assumptions made once considering Hardy-Weinberg equilibrium. Thus, the version is not very realistic in nature, since these problems are rarely met. Also, no natural an option is assumed to occur.


Report an Error

Example concern #1 : expertise Hardy Weinberg problems


A lake contains a population of twelve bluegill fish, 8 with red spots and 4 v no red spots. The fish space healthy and strong, all exactly the same other than for the coloring. Anglers visit the lake, and catch 7 fish with red spots and also 1 fish v no red spots, leave 1 v red spots and 3 without red spots continuing to be in the lake. This change in the populace is an instance of __________.


Possible Answers:

natural selection


mutation


genetic drift


gene flow


migration


Correct answer:

genetic drift


Explanation:

All the factors provided are determinants that can change the genetic equilibrium that a population. Hereditary drift is a random adjust in the frequency that alleles, as in this question—at first, over there were more red-spotted fish than spotless fish (a 2:1 ratio), however once the arbitrarily fishing took place, there were fewer red-spotted fish than spotless fish (a 1:3 ratio). This choice by possibility is genetic drift.

Gene circulation is the movement of alleles right into or the end of a population, generally as result of patterns that migration.

Migration is the physical exit or arrival of organisms in between different populations or geographical locations.

Natural choice is the enhanced prevalence that "favorable" traits and genes, and the decline in pervasiveness of "unfavorable" traits and also genes.

Mutation is a genetic alteration that outcomes in a brand-new DNA sequence. Mutation is responsible because that the development of new alleles, traits, and also phenotypes.


Report an Error

Example question #6 : expertise Hardy Weinberg conditions


Which that the complying with is not an application of the presumptions underlying Hardy-Weinberg equilibrium?


Possible Answers:

A populace of 2,000,000 mosquitos flying end a body of water


Two populaces of island rabbits, be separate by 5 mile of ocean


A masculine bird with large and bright feathers is more fit than various other birds


Mutation-free DNA replication


A researcher randomly splitting fruit flies right into mating groups


Correct answer:

A masculine bird with large and bright feathers is more fit than various other birds


Explanation:

For Hardy-Weinberg equilibrium to it is in in effect, five problems must it is in met:

1. Large Population

2. Isolated populaces (no immigrant or emigration)

3. No spontaneous mutations

4. Adjustment is random

5. No organic selection


Report one Error

Example question #1 : knowledge Hardy Weinberg problems


Which of these components would not contribute to Hardy-Weinberg equilibrium?


Possible Answers:

Natural selection


Large population 


Random mating


Closed system


Correct answer:

Natural selection


Explanation:

Hardy-Weinberg equilibrium defines no readjust in genotypic frequencies over multiple generations. This is not likely to be watched in nature because of multiple factors, however it have the right to be a useful theory because that scientists. Hardy-Weinberg equilibrium needs no immigrant or emigration, a huge population, random mating, and also no spontaneous mutations (all of which are virtually inescapable in nature). Natural choice would hurt these conditions.


Report an Error

Example inquiry #8 : expertise Hardy Weinberg conditions


If all Hardy-Weinberg conditions are met, what will be the result? 


Possible Answers:

Elimination of homozygote individuals 


Elimination that heterozygote individuals 


Constant fluctuation in genotypic frequencies 


No change in genotypic frequencies 


Correct answer:

No readjust in genotypic frequencies 


Explanation:

Hardy-Weinberg equilibrium explains no readjust in the genotypic frequencies that a population. ~ one generation, assuming arbitrarily mating, a close up door system, a huge population, and no random mutations, the genotypic frequencies of the populace will not change.


Report an Error

Example question #1 : continuous Weinberg Equilibrium


Consider a populace in Hardy-Weinberg equilibrium. A gene in the population has two alleles. The gene pool shows a circulation of 80% the the dominant allele and also 20% the recessive allele.


What percent of the populace is heterozygous because that the trait?


Possible Answers:


*


*


*


Correct answer:


Explanation:

Since the population is in Hardy-Weinberg equilibrium, we deserve to use the complying with equation to identify the genotypic frequencies for the allele in question:

*

In this equation, 

*
represents the frequency that the dominant allele and 
*
to represent the frequency of the recessive allele. The 
*
section of the expression represents the frequency that heterozygotes in the population. Making use of the allelic frequencies provided in the question, we have the right to calculate the percent of heterozygous individuals.

*

*

32% that the populace is heterozygous for the trait.


Report an Error

Example concern #2 : durable Weinberg Equilibrium


In an isolated populace of ants in the Amazon rainforest, color is figured out by a solitary gene. Ants that are homozygous dominant (BB) and heterozygous (Bb) because that this gene are black, yet ants that room homozygous recessive (bb) for this gene room brown. 


If the phenotype frequencies are 0.75 black and also 0.25 brown, what are the allele frequencies within this population?


Possible Answers:


Correct answer:


Explanation:

We have the right to use the Hardy-Weinberg equations to fix this question:

*

*

We recognize that the black color allele (B) is dominant and the brown allele (b) is recessive.

Using these 2 equations, we recognize that 0.25 space homozygous recessive (brown). This worth will be equal to 

*
.

We can then fix as follows:

*

*

Therefore, we recognize that the frequency of each allele is equal to 0.5.

See more: Looks Like We Made It Theme Song, Looks Like We Made It By Barry Manilow


Report one Error
← previous 1 2 next →
check out Tutors
Chloe Certified guardian
Cornell University, Bachelor that Science, Biology, General.
watch Tutors
Erin Certified tutor
University of southern Florida-Main Campus, Bachelors, Biology, General. Massachusetts institute of Technology, PHD, biological ...
see Tutors
Michael Certified tutor
Stony Brook University, Bachelor the Science, Biology, General.

All High institution Biology resources


10 Diagnostic test 247 practice Tests concern of the work Flashcards find out by principle
Popular Subjects
SSAT Tutors in Seattle, SSAT Tutors in Denver, math Tutors in Seattle, Statistics Tutors in Miami, Spanish Tutors in Boston, GRE Tutors in Los Angeles, English Tutors in Denver, MCAT Tutors in Washington DC, Calculus Tutors in Los Angeles, computer Science Tutors in Phoenix
Popular courses & Classes
GMAT courses & class in Denver, Spanish process & great in mountain Francisco-Bay Area, SSAT courses & classes in brand-new York City, ACT process & classes in Dallas fort Worth, ACT process & classes in Washington DC, ISEE process & class in Boston, GRE process & classes in Los Angeles, SAT courses & classes in Miami, ACT courses & classes in Philadelphia, LSAT process & class in Phoenix
Popular test Prep
MCAT test Prep in Washington DC, ACT test Prep in Philadelphia, LSAT test Prep in new York City, ACT check Prep in Dallas fort Worth, GRE test Prep in Miami, SSAT test Prep in brand-new York City, SSAT check Prep in Miami, GMAT check Prep in Boston, GRE check Prep in Los Angeles, ACT test Prep in brand-new York City
Report an problem with this concern

If you"ve uncovered an worry with this question, please let united state know. With the aid of the neighborhood we can continue to improve our educational resources.


Do no fill in this field
* her Name:
* issue Description:
DMCA complaint

your Infringement an alert may it is in forwarded to the party that made the content accessible or to 3rd parties such as ChillingEffects.org.

please follow these steps to paper a notice:

girlfriend must incorporate the following:

Send your complaint to our designated certified dealer at:

Charles Cohn Varsity Tutors llc 101 S. Hanley Rd, Suite 300 St. Louis, MO 63105