Homework Answers
answer 8 ) The snails in the picture can be considered as a population.
From the defination of Population, are the organisms of the same group or from the same species who live in a particular geographical area and are capable of interbreeding.
These snails are capable of interbreeding .
answer 9 ) All the variation of all the genes in a population are known as its Gene pool.
A gene pool is nothing but the collection of set of all genes or genetic information of a particular species in a population.
answer 10 ) The frequency of alleles in a population should remain constant unless there are other factors at work. This principle of a non evolving population is known as the Hardy Weinberg principle.
The principle states, that the allele and genotype frequencies in a population will remain constant from generation to generation in the absence of other evolutionary influences , disturbing factors, such as mutation.
answer 11 ) 5 conditions for Hardy Weinberg Principle are :
a. no mutation,
b. random mating,
c. no gene flow,i.e, no immigration or emigration.
d. infinite population size,
e. no natural selection.
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8. Would the snails in this photo be considered members of the same population? Briefly explain...
Complete each sentence with the appropriate term or phrase. does not migrate are If members of...
Complete each sentence with the appropriate term or phrase. does not migrate are If members of one population into another population, allelic frequencies may be changed. migrate infinitely large For a population to exhibit Hardy-Weinberg equilibrium, it must meet several conditions including that the population is , members must mate, that the alleles undergoing natural selection, that there is no migration, and that there is no genetic drift. changing stabilizing Restriction of mate selection, either based on behavior or physical...
5. Fur colour in mice is a single gene trait controled by two alleles. In a population of 75 mice, 21 are homozyg...
5. Fur colour in mice is a single gene trait controled by two alleles. In a population of 75 mice, 21 are homozygous dominant, 37 are heterozygous dominant, and 17 are homozygous recessive. What is the frequency of the dominant allele in the population? Show all work and record your answer as a value between O and 1 rounded to two decimal places 6. The Hardy-Weinberg principle states that allele and genotype frequencies remain constant from one generation to the...
biology please help--gene pools 1. One of the important theoretical concepts in population genetics is that...
biology please help--gene pools
1. One of the important theoretical concepts in population genetics is that of genetic equilibrium, which the Aarge, randomly mating population, allele frequencies do not change from generation to generation frequencies in a population are to remain unchanged, all of the following teria must be met the population must be Irge, there must be no mutation or gone flow, masing must be randon, and there must be no natural selection El Is a consequence of swarty...
heterozygote disadvantage Natural selection is the process by which organisms with the best adapted phenotype are...
heterozygote disadvantage Natural selection is the process by which organisms with the best adapted phenotype are selected for by environmental conditions. anthropogenic events such as the use of DDT heterozygote advantage Allelic frequencies can change due to selection or they may change due to genetic drift. environmental conditions The process of natural selection relies on the presence of of a gene within a population. genetic drift Deleterious alleles may persist in the population particularly if they confer a single allele...
Climate change is a threat to the existence of many species.
QUESTION 2 Climate change is a threat to the existence of many species. Which of the following limits to natural selection hinders the adaptation of species to the new climate conditions? The developmental plans of plants and animals are too complex. They cannot cope with the warmer temperatures. Mutations happen so frequently that beneficial alleles change before natural selection can substantially increase their frequency Many species not have gene variants in their gene pool that are beneficial in higher temperatures. Climate change happens so...
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...
Two people who are “carriers” of (heterozygous) for Tay Sachs disease marry and plan a family....
Two people who are “carriers” of (heterozygous) for Tay Sachs disease marry and plan a family. What is the probability that a child from this union will suffer from Tay Sachs disease. (Recall that this is an autosomal recessive disorder, that is, homozygous recessives have the disease.) a. Zero b. 0.25 c. 0.5 d. 0.75 e. 1.0 6. At Hardy-Weinberg equilibrium, heterozygotes are the most common genotype in the population when- a. b. c. d . p> 0.67 q>0.67 and...
In the gene pool of a population with 132 individuals, a fixed allele for a particular...
In the gene pool of a population with 132 individuals, a fixed allele for a particular genetic locus has a frequency of Select one: O a. 1 O b. More information is needed to determine this. O c. 0.75 O d.o O e. 0.5 Which of the following does not have the ability to alter allele frequencies? Select one: O a. gene flow O b. inbreeding O c. genetic drift O d. natural selection O e. All of these have...
to ikely s seeb of alleles into a population 12) Which of the folhowing a 8)...
to ikely s seeb of alleles into a population 12) Which of the folhowing a 8) wings of a butterly and wings o ivings of a dragoni due bo a in allelic frequencies due to homologous? AJ the mouth of a mosguito of a hummingbird C) changes in the gene pool of ation due to differential ty and the wings parrow C) the D) chance changes in the gene 5) the loss of alleles trom a population of a hawl...
In a population of mice a particular locus has two alleles A1 (dominant) and A2 (recessive)....
In a population of mice a particular locus has two alleles A1 (dominant) and A2 (recessive). There are 126 A1A1, 167 A1A2 and 88 A2A2. Is this population in Hardy-Weinberg equilibrium (3 pts)? In a population of Gragons, there are 3151 A1A1, 1678 A1A2 and 2014 A2A2 individuals. If the environment changes so that the homozygous recessive genotype suffers a reduction of fitness where its fitness is now 0.73, but the other genotypes are unaffected, what will be the frequency...
Complete each sentence with the appropriate term or phrase. does not migrate are If members of one population into another population, allelic frequencies may be changed. migrate infinitely large For a population to exhibit Hardy-Weinberg equilibrium, it must meet several conditions including that the population is , members must mate, that the alleles undergoing natural selection, that there is no migration, and that there is no genetic drift. changing stabilizing Restriction of mate selection, either based on behavior or physical...
5. Fur colour in mice is a single gene trait controled by two alleles. In a population of 75 mice, 21 are homozygous dominant, 37 are heterozygous dominant, and 17 are homozygous recessive. What is the frequency of the dominant allele in the population? Show all work and record your answer as a value between O and 1 rounded to two decimal places 6. The Hardy-Weinberg principle states that allele and genotype frequencies remain constant from one generation to the...
biology please help--gene pools
1. One of the important theoretical concepts in population genetics is that of genetic equilibrium, which the Aarge, randomly mating population, allele frequencies do not change from generation to generation frequencies in a population are to remain unchanged, all of the following teria must be met the population must be Irge, there must be no mutation or gone flow, masing must be randon, and there must be no natural selection El Is a consequence of swarty...
heterozygote disadvantage Natural selection is the process by which organisms with the best adapted phenotype are selected for by environmental conditions. anthropogenic events such as the use of DDT heterozygote advantage Allelic frequencies can change due to selection or they may change due to genetic drift. environmental conditions The process of natural selection relies on the presence of of a gene within a population. genetic drift Deleterious alleles may persist in the population particularly if they confer a single allele...
In the gene pool of a population with 132 individuals, a fixed allele for a particular genetic locus has a frequency of Select one: O a. 1 O b. More information is needed to determine this. O c. 0.75 O d.o O e. 0.5 Which of the following does not have the ability to alter allele frequencies? Select one: O a. gene flow O b. inbreeding O c. genetic drift O d. natural selection O e. All of these have...
to ikely s seeb of alleles into a population 12) Which of the folhowing a 8) wings of a butterly and wings o ivings of a dragoni due bo a in allelic frequencies due to homologous? AJ the mouth of a mosguito of a hummingbird C) changes in the gene pool of ation due to differential ty and the wings parrow C) the D) chance changes in the gene 5) the loss of alleles trom a population of a hawl...
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