Biology Biology Practice Problems Solutions Library

Hardy-Weinberg Model Solutions Library

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60 solutions

Hardy-Weinberg Model

Q. I am raising a populationof Halloween cats - they have either black tails or orange tails. tail color is determined by a single gene with only two ...

Solved • Oct 21, 2018

Hardy-Weinberg Model

Q. Consider a population of 10,000 individuals with the following allele frequencies: A = 0.7, a =0.3. How many AA homozygotes do you expect to find b...

Solved • Oct 20, 2018

Hardy-Weinberg Model

Q. Sickle cell anemia is caused by the deleterious HS allele. The WT allele is the HB allele. In a population of 200,000 individuals, the observed fre...

Solved • Oct 6, 2018

Hardy-Weinberg Model

Q. Human blood type is determined by three alleles IA, IB, and IO. The alleles IA and IB are co-dominant to each other, and both are dominant to IO. W...

Solved • Oct 6, 2018

Hardy-Weinberg Model

Q. A new kind of orchid is produced that develops only purple or pink flowers. Assume that flower color is controlled by a single-gene locus and that ...

Solved • Oct 6, 2018

Hardy-Weinberg Model

Q. A new kind of geranium is produced that develops only red or yellow flowers. Assume that flower color is controlled by a single-gene locus and that...

Solved • Oct 6, 2018

Hardy-Weinberg Model

Q. Hemophilia is an X-linked recessive trait. In a population, you find a frequency of 1 hemophiliac in 200 males. Assuming that this population is in...

Solved • Oct 6, 2018

Hardy-Weinberg Model

Q. Which of the following genotype frequencies of AA, Aa, and aa, respectively, satisfy the Hardy-Weinberg principle (i.e. which are in quilibrium)A. ...

Solved • Oct 5, 2018

Hardy-Weinberg Model

Q. Consider the following population for the shown trait below. What is the frequency of the IA allele in this population? Assume Hardy-Weinberg equil...

Solved • Oct 5, 2018

Hardy-Weinberg Model

Q. Assume that a trait is caused by the homozygous state of a gene that is recessive and autosomal. Nine percent of the individuals in a given populat...

Solved • Oct 5, 2018

Hardy-Weinberg Model

Q. In a population of cattle, the following color distribution was noted: 36 percent red (RR), 48 percent roan (Rr), and 16 percent white (rr). Is thi...

Solved • Oct 5, 2018

Hardy-Weinberg Model

Q. What is the number of dominant alleles in a population of 100 individuals with the following genotypes: 30 BB, 60Bb, 10bb?A. 40B. 60C. 90D. 120

Solved • Oct 4, 2018

Hardy-Weinberg Model

Q. Suppose pea color is determined by 2 alleles: the Y allele is yellow and is dominant over the y allele which is green. If the Y allele is found at ...

Solved • Sep 29, 2018

Hardy-Weinberg Model

Q. Ina certain type of wild flower, red is the dominant color and white is the recessive color. Phenotypic red flowers can be either homozygous domina...

Solved • Sep 13, 2018

Hardy-Weinberg Model

Q. In a population of blue jays that is at Hardy-Weinberg equilibrium for two alleles forcrest height, 16% of the population shows the recessive trait...

Solved • Sep 11, 2018

Hardy-Weinberg Model

Q. In a population of 100 alligators at Hardy-Weinberg equilibrium on the Wakulla River, 49 are homozygous dominant for bad breath(BB; not that you wo...

Solved • Sep 10, 2018

Hardy-Weinberg Model

Q. In cats, the Xb allele causes orange coat color and the XB allele causes black coat color. The alleles are X-linked and codominant, so heterozygote...

Solved • Aug 30, 2018

Hardy-Weinberg Model

Q. Assume that all possible blood genotypes are present in a particular population that is in Hardy-Weinberg equilibrium with respect to the ABO blood...

Solved • Aug 28, 2018

Hardy-Weinberg Model

Q. A population of 264 rabbits in a national park is in H/W equilibrium with respect to the gene that controlsfur color. The allele for tan fur is dom...

Solved • Aug 28, 2018

Hardy-Weinberg Model

Q. What is the frequency of the purple allele when in a population of 1000 pea plants that all have purple flowers?A. 0.75 (or 75%)B. There's not enou...

Solved • Aug 22, 2018

Hardy-Weinberg Model

Q. What is the frequency of the white allele in a population of 1000 pea plants that all have white flowers?A. 1.0 (or 100%)B. 0.5 (or 50%)C. There's ...

Solved • Aug 22, 2018

Hardy-Weinberg Model

Q. What is the frequency of the white flowers when the frequency of the purple allele (P) is 0.6?

Solved • Aug 21, 2018

Hardy-Weinberg Model

Q. Gray color in horses iscaused by a dominant gene, G, and other colors by its recessive allele, g. A survey of 10,000 Arabian foals showed 76% gray....

Solved • Aug 3, 2018

Hardy-Weinberg Model

Q. Among Western European people, 64% of the population find phenylthiocarbamide (PTC) to taste bitter. The remainder cannot taste it. What is the fre...

Solved • Aug 3, 2018

Hardy-Weinberg Model

Q. Red color is recessive to black. A group of 450 calves that resulted from random mating has 18 red calves. A. What is estimated gene frequency of t...

Solved • Jul 30, 2018

Hardy-Weinberg Model

Q. Human blood type is determined by three alleles, IA, IB, and IO. The alleles IA and IB are codominant to each other, and both are dominant to IO. W...

Solved • Jul 18, 2018

Hardy-Weinberg Model

Q. A population consists of 200 individuals with genotype information summarized below:A. What is the frequency of the A allele?B. What is the frequen...

Solved • Jul 18, 2018

Hardy-Weinberg Model

Q. Suppose you are investigating an autosomal recessive disease known as "studious toxicosis" which occurs at a rate in the American college student p...

Solved • Jul 17, 2018

Hardy-Weinberg Model

Q. The genotypic frequencies of the MN blood groups in various populations are shown below. Given this information, determine if the genotypic frequen...

Solved • Jul 17, 2018

Hardy-Weinberg Model

Q. Given the following genotypic frequencies of AA = 0.39, Aa = 0.56, and aa = 0.05, is this population in Hardy-Weinberg equilibrium? Explain why the...

Solved • Jul 17, 2018

Hardy-Weinberg Model

Q. Among Arabs, the frequencies of alleles determining the ABO blood type groups were estimated as IA = 0.209, IB = 0.129, IO = 0.660. What are the ex...

Solved • Jul 17, 2018

Hardy-Weinberg Model

Q. M and N are blood groups separate from A, B, and O. It is controlled by two alleles of one gene, LM and LN. People with blood type M are homozygous...

Solved • Jul 17, 2018

Hardy-Weinberg Model

Q. Which of the following is an assumption of Hardy-Weinberg equilibrium?A. Every individual in the population always mates with an individual with a ...

Solved • Jul 13, 2018

Hardy-Weinberg Model

Q. Within a population of butterflies, the color brown (B) is dominant over the color white (b), and 40% of all the butterflies are white. Given this ...

Solved • Jul 11, 2018

Hardy-Weinberg Model

Q. In house cats, the presence of black splotches is coded for by a dominant allele S; the recessive allele s codes for no black splotches. In a very ...

Solved • Jul 11, 2018

Hardy-Weinberg Model

Q. Having a widow's peak hairline is a Mendelian trait that exhibits complete dominance. Imagine 51% of Americans have a widow's peak. If this populat...

Solved • Jul 3, 2018

Hardy-Weinberg Model

Q. Hardy-Weinberg equilibrium is utilized to predict allele frequencies in populations from generation to generation. For this equilibrium to be achie...

Solved • Jul 3, 2018

Hardy-Weinberg Model

Q. What 3 assumptions make an "deal population" that behaves according to the Hardy-Weinberg equilibrium?

Solved • Jun 29, 2018

Hardy-Weinberg Model

Q. A population has 36% recessive homozygotes. What would the expected frequency of the homozygous dominant genotype be?

Solved • Jun 28, 2018

Hardy-Weinberg Model

Q. Compare the observed genotype frequencies you just calculated with the genotype frequencies expected if the population is in Hardy-Weinberg equilib...

Solved • Jun 11, 2018

Hardy-Weinberg Model

Q. What happens in a population that is not in Hardy-Weinberg equilibrium? Drag the labels to the table below to describe how allele frequencies would...

Solved • Jun 11, 2018

Hardy-Weinberg Model

Q. Using the day 7 data, what is the frequency of the CGallele (p)?Using the day 7 data, what is the frequency of the CYallele (q)?

Solved • Jun 6, 2018

Hardy-Weinberg Model

Q. In a given population, only the "A" and "B" alleles are present in the ABO system; there are no individuals with type "O" blood or with O alleles i...

Solved • Apr 24, 2018

Hardy-Weinberg Model

Q. There is a population with the following genotype frequencies: 3200 WW, 1600 Ww, and 200 ww. Is this distribution of genotype frequencies consisten...

Solved • Apr 23, 2018

Hardy-Weinberg Model

Q. The fraggles are a population of mythical, mouse-like creatures that live in underground tunnels and chambers beneath a large vegetable garden (whi...

Solved • Dec 4, 2017

Hardy-Weinberg Model

Q. In a population of fiddler crabs, Uca pugilator, that is in Hardy-Weinberg equilibrium for two alleles, L and l (where L causes long antennae and l...

Solved • Dec 4, 2017

Hardy-Weinberg Model

Q. For a trait (bumpy or smooth skin) with two alleles (where smooth is the recessive allele), a population of 56 toads not in Hardy- Weinberg equilib...

Solved • Dec 4, 2017

Hardy-Weinberg Model

Q. What is the frequency of individuals with Type B blood in a human population in Hardy-Weinberg equilibrium in which all possible blood genotypes ar...

Solved • Dec 4, 2017

Hardy-Weinberg Model

Q. In a study of a population of blue-footed boobies that is in Hardy-Weinberg equilibrium, you find that 49% of the boobies have the recessive wing-c...

Solved • Dec 4, 2017

Hardy-Weinberg Model

Q. In peas, a gene shows incomplete dominance for flower color such that RR = purple, Rr = pink, and r = white. In an isolated pea patch, a killing fr...

Solved • Oct 13, 2017

Hardy-Weinberg Model

Q. All of the following are criteria for maintaining Hardy-Weinberg equilibrium involving two alleles except ____.a. there should be no natural select...

Solved • Oct 13, 2017

Hardy-Weinberg Model

Q. You have a population of 100 individuals in HW equilibrium and there are two alleles at the T locus (T and t). If there are 64 individuals in the p...

Solved • Aug 3, 2017

Hardy-Weinberg Model

Q. A population of cats is in Hardy Weinberg equilibrium for the S locus which causes patches of white fur. There are two alleles S and s. The frequen...

Solved • Aug 3, 2017

Hardy-Weinberg Model

Q. The most common allele for any trait is always the dominant allele. a. True    b. False

Solved • Jul 27, 2017

Hardy-Weinberg Model

Q. In the Hardy-Weinberg equation, p 2 + 2pq + q 2 = 1. If the dominant allele frequency is 0.8, what percent of the population will be homozygous rec...

Solved • Jul 20, 2017

Hardy-Weinberg Model

Q. In the Hardy-Weinberg equation, p 2 + 2pq + q 2 = 1. If the dominant allele frequency is 0.8, what percent of the population will be homozygous dom...

Solved • Jul 20, 2017

Hardy-Weinberg Model

Q. In the Hardy-Weinberg equation, p 2 + 2pq + q 2 = 1. If the dominant allele frequency is 0.8 what percent of the population will be heterozygous? a...

Solved • Jul 20, 2017

Hardy-Weinberg Model

Q. At Hardy-Weinberg equilibrium: a.  Allele frequencies change from one generation to the nextb.  Evolution does not occurc.  Allele frequencies chan...

Solved • Jul 20, 2017

Hardy-Weinberg Model

Q. In the Hardy-Weinberg equation, p2 + 2pq + q2 = 1: 2pq represents: a.  The frequency of homozygous recessive individualsb.  The frequency of homozy...

Solved • Jul 20, 2017

Hardy-Weinberg Model

Q. In the Hardy-Weinberg equation, p + q = 1, p and q represent the frequency of alleles in a population of diploid organisms if: a.  Two or more alle...

Solved • Jul 20, 2017