Which of the following factors increase the incidence of an autosomal recessive traitin a population?O Assortative matingOutbreedingGenetic diversityAll of the above

Name: Which of the following factors increase the incidence of an autosomal
Uploaded: 2024-03-20T06:42:55.000Z
Channel: Bartleby
Description: Which of the following factors increase the incidence of an autosomal recessive traitin a population?O Assortative matingOutbreedingGenetic diversityAll of the above

Answered: Image /qna-images/answer/22af0d9c-3156-459d-9e19-7afa39d3cd8d.jpg

Answered: Which of the following factors increase…

Science

Biology

Which of the following factors increase the incidence of an autosomal recessive trait in a population? Assortative mating O Outbreeding Genetic diversity All of the above

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter19: Population Genetics And Human Evolution

Section: Chapter Questions

Problem 11QP: Using the HardyWeinberg Law in Human Genetics In a given population, the frequencies of the four...

See similar textbooks

Similar questions

A population of water snakes is found on an island in Lake Erie. Someof the snakes are banded and some are unbanded; banding is caused byan autosomal allele that is recessive to an allele for no bands. Thefrequency of banded snakes on the island is 0.4, whereas the frequencyof banded snakes on the mainland is 0.81. One summer, a large numberof snakes migrate from the mainland to the island. After this migration,20% of the island population consists of snakes that came from themainland.a. If both the mainland population and the island population are assumedto be in Hardy–Weinberg equilibrium for the alleles that affect banding,what is the frequency of the allele for bands on the island and on themainland before migration?b. After migration has taken place, what is the frequency of the allele forthe banded phenotype on the island?
In a large, randomly mating population, the frequency of an autosomalrecessive lethal allele is 0.20. What will the frequency of this allele be inthe next generation if all homozygotes die before reproducing?
Some people can taste the bitter compound phenylthiocarbamide while others cannot. This trait isgoverned by a single autosomal gene; the allele fortasting is completely dominant with respect to the allele for nontasting. Among 1707 Hawaiians tested forthe ability to taste, 1326 tasters were found. Assumingthat the population is at Hardy-Weinberg equilibriumfor this gene and that mating is purely random:a. What are the allele frequencies for the tasting alleleT [= (p)] and for the nontasting allele t [= (q)]?b. What are the genotype frequencies in the population?c. Of all the matings in the population, what proportion will be between two nontasters?d. Of all the matings in the population, what proportion will be between a taster and a nontaster?e. Of all the matings in the population, what proportion will be between a taster male and a nontasterfemale?f. What proportion of all of the progeny produced byall matings between a taster male and a nontasterfemale will be nontasters?g. Of all…
The high frequency of hemoglobin alleles linked to the devastating disease, sickle- cell anemia, in areas with high incidence of malaria suggests that: O Individuals that are heterozygote of sickle-cell anemia were retained in the population due to their fitness advantage against malaria. O The retaining of individuals with the autosomal recessive disease is an example of purifying selection O The retaining of individuals with the autosomal recessive disease is an example of directional selection O natural selection is not true because individuals with the devastating disease is retained in the population. Malaria causes sick-cell anemia.
The biological selection of a particular allele for a trait to be passed to offspring has nothing do with the selection of the allele for another trait. Which of the following supports this statement? O law of independent assortment O law of dominance O law of segregation O law of recessiveness
What describes the phenotypic plasticity of an organism best? O the degree of which individuals can change over time by altering their genotype O the effect of variable environment on the genotype of an organism O the variation of the target phenotype for a given genotype in different environments O the change of a phenotype due to ingestion of detrimental plastic material (as for instance plastic straws by sea turtles). O the degree of which a given genotype is adapted to a particular environment
Different species of crickets have distinct songs, andthey use these songs for mate recognition. Researcherscrossed two species of Hawaiian crickets (Laupala paranigra and L. kohalensis) whose songs are distinguishedby pulse rate (the number of pulses per second; Shaw etal., Molecular Ecology 16, 2007, 2879–2892.) Then, theymapped QTL in the F2 population derived from thiscross. Six autosomal QTL were detected. The mean traitvalues (pulses per second) at the three genotypic classesin the F2 for each QTL are shown in the table below,where P indicates the L. paranigra allele and K indicatesthe L. kohalensis allele.a. Calculate the additive (A) and dominance (D) effectsand the D/A ratio for each of the six QTL.b. Which of these QTL shows the greatest amount ofdominance?c. Which of these has the largest additive effect?d. The mean pulse rate for L. kohalensis is 3.72, and it is0.71 for L. paranigra. Do all six QTL act in the expecteddirection with the L. kohalensis allele conferring a…
A large population of moths contains 35% white moths caused by the double recessive genotype, bb.What are all the allelic and genotypic frequencies for this population?Frequency of thedominant alleleFrequency of therecessive allele% homozygous dominant% homozygous recessive% heterozygous
Using the HardyWeinberg Law in Human Genetics In a given population, the frequencies of the four phenotypic classes of the ABO blood groups are found to be A = 0.33, B = 0.33, AB = 0.18, and i = 0.16. What is the frequency of the i allele?
If 4 percent of a population in equilibrium expresses a recessivetrait, what is the probability that the offspring of two individualswho do not express the trait will express it?
The trait of feathering in fowls is a sex-limited trait controlled bya single gene. Females always exhibit hen-feathering, as do HHand Hh males. Only hh males show cock-feathering. Startingwith two heterozygous birds that are hen-feathered, explain howyou would obtain a true-breeding line that always produced cockfeathered males.
A dog breeder thinks that he will be able to charge higher prices for extra-tiny versions ofsmall dogs. He starts off by trying to selectively breed smaller Yorkshire terriers. The averageadult mass of the terriers in his kennel is 2.5 kg. He selects a subset of the smallest dogs to foundhis new tiny dog line. The average mass of the 20 selected dogs is 1.8 kg. He chooses matedpairs randomly from that pool of 20 dogs and rears the resulting puppies to adulthood. Theaverage mass of these offspring was 2.4 kg. Disappointed with the results, the breeder wantsyour help in figuring out where his plan went wrong. 5a.What is the narrow-sense heritability of body size in his population of dogs? 5b. You examine his records and calculate the total phenotypic variance VP across his wholestarting population of yorkies to be 1.1. What is the additive genetic variance VA in thispopulation? 5c. The breeder clearly kept very good records of dog size measurements across the pedigrees inhis…