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- Which type of selection is represented in a population of birds where a wing span of 2ft rather than 1ft or 3ft is more beneficial? Directional Disruptive StabalizingStabilizing selection happens when O Large and small values of a trait are selected against Medium values of a trait are selected against Only large OR small values of a trait are selected againstDisruptive Trait The figure above shows disruptive selection. The trait distribution changes from the black line to the green (lighter) line. During disruptive selection as shown above The standard deviation of the trait distribution decreases The standard deviation of the trait distribution increases The mean value of the trait distribution is selected for The mean value of the trait distribution in the population becomes smaller The mean value of the trait distribution in the population becomes larger Frequency
- If the methuselah gene overall has lower reproductive success, why does it persist in many wild populations? there is mutation selection balance it is beneficial in warm environments there is heterozygous advantage O it is harmful in cold environmentsWhich of the following is NOT an example of sexual selection in the wild? * Peacocks showing off bright feathers to attract the peahens. Newts camouflaging in their environment so predators can't see them. Frogs singing loud songs to attract a mate. Rams butting heads and fighting to gain access to the females. INTL O 4:32 novo N42 Touch 4. %23 24 & backspace 4. 7 8 e r y ab f k enter shift C V alt ctrl altIn a habitat there are red bugs and green bugs. the birds prefer the taste of red bugs. so soon there are many green bugs and dew red bugs. the green bugs reproduce and make more green bugs and eventually there are no more red bugs. what type of selection is this? give another example of this type of selection
- Which of the following statements about genetic fitness and/or selection is false? Group of answer choices Individuals with low fitness have greater selection coefficients Fitness involves both relative viability and reproductive success Individuals with high fitness have greater selection coefficients Selection against recessive alleles tends to be slower overall than dominant alleles because of the survival in heterozygotesNatural selection causes a shift in gene frequencies. What type of shift due to natural selection is represented here? Describe that type of natural selection and which data on these graphs support it. Chose one other type of selection and provide an example of how it is different from these graphs. Average 30 8.8 9.3 9.8 10.3 10.8 11.3 Beak depth Number of medium ground finches 25 20 15- 10 5 0 7.3 7.8 8.3What pattern of selection is being shown in the picture below? * Selection against the mean Population after selection Original population O Disruptive Selection Stabilizing Selection O Directional Selection Neutral Selection M
- Which individuals have the highest fitness among all others where there is no malaria? Group of answer choices All genotypes have equal fitness when there is no malaria Homozygous for S allele of hemoglobin gene Homozygous for A allele of hemoglobin gene Heterozygous for the A and S allele of the hemoglobin geneIn terms of natural selection, what is a "detrimental mutation"? O One that has a negative effect on fitness in a given environment O One that does not affect fitness in a given environment One that has a positive effect on fitness in a given environment MacBook Air 888 00 吕0 F7 F6 F5 F4 F3For each of the following, identify whether it will primarily cause changes in allele frequency, genotype frequency, either allele or genotype frequency (depending on the situation), or no change is expected. Assortative Mating Mutation Migration Selection Genetic Drift [Choose ] [Choose ] allele frequency no change is expected genotype frequency either allele or genotype frequency [Choose ] [Choose ] allele frequency