Match the term with the BEST definition. EACH TERM IS USED EXACTLY ONCE. く Origin of new alleles Differential reproduction く in a variable gene pool 1. Microevolution Migration 2. Prezygotic mechanism ✓ Prevents fertilization 3. Homologous く Allele frequency changes 4. Analogous 5. Gene flow The handicap imposed by flashy coloration suggests 6. Genetic drift higher fitness. 7. Natural selection Traits resulting from shared selection pressures 8. Mutation Traits resulting from shared ancestry 9. Honest advertising hypothesis Flashy coloration indicates increased metabolic efficiency. 10. Good genes hypothesis ☐ ☐ > Random change in gene frequency Question 25/Mandatory (pointel 2 80 F3 3 # $ 94 E R F4 F5 F6 % do5 t 6 F7 DII F8 DD F9 4 F10 F11 & 7 Y U 8 9 0 0 -

Match the term with the BEST definition. EACH TERM IS USED EXACTLY ONCE. く Origin of new alleles Differential reproduction く in a variable gene pool 1. Microevolution Migration 2. Prezygotic mechanism ✓ Prevents fertilization 3. Homologous く Allele frequency changes 4. Analogous 5. Gene flow The handicap imposed by flashy coloration suggests 6. Genetic drift higher fitness. 7. Natural selection Traits resulting from shared selection pressures 8. Mutation Traits resulting from shared ancestry 9. Honest advertising hypothesis Flashy coloration indicates increased metabolic efficiency. 10. Good genes hypothesis ☐ ☐ > Random change in gene frequency Question 25/Mandatory (pointel 2 80 F3 3 # $ 94 E R F4 F5 F6 % do5 t 6 F7 DII F8 DD F9 4 F10 F11 & 7 Y U 8 9 0 0 -

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter21: Microevolution: Genetic Changes Within Populations

Section: Chapter Questions

Problem 1TYK: The reason spontaneous mutations do not have an immediate effect on allele frequencies in a large...

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14. In class we explored how genotype frequencies can change between generations. In our experiment, we started with a population in which every individual was heterozygous for a few traits of interest. The data for the 11 offspring of these heterozygotes are below. Make sure you show at least some work for partial credit. Frecueles Eje coloN Freckles Genotype FF Eye Shape Genotype EE Eye Color Genotype RR (P 3 (P 3 Ff 5 Ee .0.3 1-0.3 3 RB 7 ff 1 ее Phenotypes Freckles No freckles Phenotypes Phenotypes Red |-0.3 FF, Ff Circle EE, Ee RR Ro.HFF) ff Star ее Purple Blue RB or BR 20.42 BB a) What were the initial allele frequencies for freckles in the starting population? FF=0.42 b) What percentage of the starting population had purple eyes? c) What are the allele frequencies for freckles after one generation? (FF)P= 0.7 (FN 2pf=0.42 (fF) = 03 d) What percentage of the population had purple eyes after one generation? e) Are the genotype frequencies for eye shape what you would expect based…
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
how would you write an hypothesis and prediction from the given data?
p + q = 1 p2 + 2pq + q2 = 1 p is the frequency of the dominant allele q is the frequency of the recessive allele p2 is the frequency of homozygous dominant genotype q2 is the frequency of homozygous recessive genotype 2pq is the frequency of heterozygous genotype Within a population of roses, the color red (R) is dominant over the color white (r). 40% of all the roses are white.a)The percentage of roses in the population that are heterozygous b) The frequency of homozygous dominant individuals =
1. Would it have made a difference if natural selection had acted on the dominant allele instead of the recessive one? Why or why not Only answer question 1 below is an information about the question. Data result of Testing Hardy-Weinberg Equilibrium with natural selection Chi-square of results from bean model for F1: a. Total of (obs-exp)2/exp = Chi- square value for F1 = 3.1 The resulting chi-squared value is 3.1. b. For a p-value of 0.05 and 2 degrees of freedom, the critical value is 5.99. Our value of 3.1 is smaller than the critical value (5.99), Thus, we cannot reject the null hypothesis. c. The population is in Hardy-Weinberg Equilibrium, and is not evolving or It does conform to null hypothesis. Chi-square of results from bean model for F2: a. Total of (obs-exp)2/exp = Chi- square value for F2 = 6.5 The resulting chi-squared value is 6.5. b. For a p-value of 0.05 and 2 degrees of freedom, the critical value is 5.99. Our value of 6.5 is greater than the critical…
hi how to figure this one out since it has to associated to all three of them?
1. A sample of 600 individuals from a population is examined for the presence of the HindIII polymorphism in an autsomal Sca gene. There are two alleles of Sca gene, A and a. The results are 14 individuals are AA, 212 are Aa, 374 are aa. Please answer the following questions accordingly? How many alleles are present in the gene pool in the sample population fort he Sca gene? What are the genotype frequencies? What are the frequencies of A and a alleles? What are the expected numbers of the three genotypes, assuming random
Figure 19.2 In plants, violet flower color (V) is dominant over white (v). If p = .8 and q = 0.2 in a population of 500 plants, how many individuals would you expect to be homozygous dominant (VV), heterozygous (Vv), and homozygous recessive (vv)? How many plants would you expect to have violet flowers, and how many would have white flowers?
The ratio of nonsynonymous differences pernonsynonymous site, dN, to synonymous differences per synonymous site, dS, can be usedto test for positive selection Imagine that in a duplicate pair of loci, oneparalog is evolving neutrally while the other isevolving under strong positive selection. Whatspecific data are needed to detect that situationusing the dN/dS ratio, and what pattern do youexpect to see?
I had trouble with explaining how natural selection affects alllele and genotype frequency. Does natural natural selection affect alleles by causing adaption to happen increasing the frequency of advantageous alleles?
Match Column A with Column B. The ultimate source of new alleles A. Mutation this force is causing a small percentage to the evolution process B. Natural selection most are lost due to chance or to detrimental effects on C. Genetic drift phenotype D. migration |In its absence, allele frequencies in different subpopulations will diverge Source of new alleles entering local population from other subpopulations v The movement of organisms among subpopulations - v Genotypes best suited to survive and reproduce in a particular environment of the offspring | The genotypes that promote survival are favored and contribute disproportionately to the offspring of the next generation known as evolutionary adaptation | The random, undirected changes in allele frequencies, especially in small populations.
n Figure 6-6, assess the allele Vfwith respect to the Vbyallele: is it dominant? recessive? codominant? incompletely dominant?