Q: How is the optimal reproductive strategy of a species produced over time by Natural Selection…
A: Natural selection is a widely accepted theory proposed by Darwin that describes how the speciation…
Q: Disruptive Trait The figure above shows disruptive selection. The trait distribution changes from…
A: Disruptive selection: A mode of natural selection in which extreme values for the trait are…
Q: Explain the directional selection effects on the phenotypic mean and the amount of phenotypic…
A: Natural selection, an evolutionary force, can strongly affect the phenotypic variation of a…
Q: In a group of 200 humans, 160 have blood type MM, 36 have MN and 4 have NN. What is the frequency of…
A: According to Hardy weinberg equilibrium p2 + 2pq + q2 = 1 and p + q = 1 p = frequency of the…
Q: Explain the stabilizing selection effects on the phenotypic mean and the amount of phenotypic…
A: Stabilizing selection is a type of natural selection in which genetic diversity decreases as the…
Q: Calculate the dominant allele "B" frequency and the recessive allele frequency if the population has…
A: According to Hardy-Weinberg equation, p2+2pq+q2 =1 & p+q =1 Where, p2= genotype frequency of…
Q: Compare and contrast stabilizing, directional and disruptive selection with regard to how each…
A: Introduction Natural selection is the adaptation and modification of populations of living…
Q: Natural selection tends to work toward genetic unity; the genotypes that are most fit produce the…
A: According to our guideline we can't provide the reference of the answer. In the nature variation…
Q: Which of the following is the degree of an organism’s adaptation to an environment, as measured by…
A: Adaptation An evolutionary mechanism where organisms modify or change there internal or external…
Q: In a population of red (dominant allele) or white flowers in Hardy–Weinberg equilibrium, the…
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Q: Meaningful evolution occurs when __________. ○ a heritable trait affects survival and fitness ○ a…
A: Evolution is the change in the characteristics of a species over several generations and relies on…
Q: Phenotypic plasticity is the ability of an individual organism to express two or more genetically…
A: Any change in the physiology, morphology and behavior in an organism due to the environment around…
Q: The combined genetic information of all members of a particular population forms a... * Gene pool…
A: Genetics is the branch of biology that deals with the genes.
Q: Explain the disruptive selection effects on the phenotypic mean and the amount of phenotypic…
A: Disruptive selection is the selection that selects the individuals with extreme values rather than…
Q: The sum of all genes and their alleles in a given population is defined as OGene pool OGene…
A: A gene pool is defined as the total genetic diversity found within a population or a species.
Q: a relative fitness value is w=0.4, what is the selection coeffcient used to identify the differences…
A: The selection coefficient (s) of a given genotype as related to the fitness or adaptive value (W) of…
Q: Describe what happens to allele frequencies as a result of the bottleneck effect. Discuss the…
A: The bottleneck effect is a significant mechanism through which genetic drift occurs. It would…
Q: The Hardy Weinberg Equilibrium Principles assumes all of the following except_______ A. The genome…
A: Introduction: In nature, the evilution among is a population is found to be a usual occurrence. It…
Q: With suitable examples, explain how mechanisms that do notinvolve adaptive traits can change allele…
A: Allele frequency means frequently appearance of particular allele appears in the population. Change…
Q: Explain how the phrase survival of the fittest differs from the biological definition of relative…
A: Natural selection: It is an evolutionary process by which living organisms adapt to their…
Q: The equilibrium frequency of a deleterious allele under mutation-selection balance increases as:
A: Answer: EQUILIBRIUM FREQUENCY is the frequency or point at which no more changes occured in allelic…
Q: )You measure the effects of a single allele (A2) on fitness in two populations of the same plant…
A: The average excess of fitness is a measure of the fitness of a particular allele (say, A2). It can…
Q: Predict how having a larger vs smaller population size or a larger vs smaller mutation rate will…
A: Genetic drift and mutation both are influenced by population size.
Q: In general, what is the effect of complete selection, migration and random genetic drift on the gene…
A: The fraction or proportion of a population that bears an allele (i.e., one kind of gene variant) at…
Q: In a population of pansies, the red allele (CR) is incompletely dominant to the white allele (Cw).…
A: Dominance is when an allele completely suppress another allele effect when present in a heterozygous…
Q: If the nucleotide variability of a locus equals 0%, what is thegene variability and number of…
A: Nucleotide variability is defined as genetic variation at the nucleotide level of DNA…
Q: Statement A: Natural selection creates new traits. Statement B: Natural selection increases or…
A: Natural selection is the process in which heritable traits that make it more likely for organisms to…
Q: Population and Quantitative Genetics. Assume the mean value for Trait A in Generation 0 is 0.5.…
A: From the base population, the individuals are selected with the desired phenotypic value. These…
Q: A Population of 500 cats has 2 alleles of interest for determining tail length. The T allele encodes…
A: Hardy Weinberg equation is a mathematical equation. With the help of this equation, the genetic…
Q: Gene flow is: the process by which allele frequencies remain the same, largely through migration and…
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Q: Explain how mutation, genetic drift, and gene flow can all contribute to changes in allele…
A: An allele is one of two or more versions of DNA sequence (a single base or a segment of bases) at a…
Q: a) Name and define the evolutionary processes that cause change in allele frequencies across…
A: a) There are five key mechanisms that cause a change in allele frequencies across generations.…
Q: A population of wildflowers consists of two flower colors. Yellow flowers (C^y) are completely…
A: given: Yellow flowers(C^y) completely dominant to white flowers(C^w). frequency of C^y allele = 70%…
Q: What long-term effects can gene flow have on any two populations that are exchanging genes?
A: Gene flow is the movement of alleles of genes from one population to the other. This happens as a…
Q: Explain the significance of stability in a population’s gene pool.
A: Gene pool: All available set of genes in a population that are available to be passed down from…
Q: In a population of flowering plants there are four alleles of a gene determining flower color. The…
A: The allele frequency is the frequency or proportion of a particular allele in the population and the…
Q: Stabilizing selection acts to change the frequency of one extreme form of a trait reduce the more…
A: Stabilizing selection is one of the types of natural selection which allows the multiplication of…
Q: A wild population of pea plants has two alleles for flower colour in its gene pool. A dominant…
A: A dominant allele is those genes that are phenotypically expressed in the offspring. while the…
Q: In the gene pool of a population with 132 individuals, a fixed allele for a particular genetic locus…
A: Introduction :- A variable form of a gene is known as an allele. Some genes exist in several…
Q: In a population, allele a has a fitness value of 1; allele b has a fitness value of .9 allele c has…
A: Fitness: In evolutionary biology, fitness is a quantitative measure of natural and sexual selection.…
Q: ___ refers to the collection of all alleles across all gene loci in a population. a) Genetic drift…
A: Introduction :- An allele is a variant form of a gene. It is found on a certain chromosome at a…
Q: List the mechanisms that may cause allele and genotype frequencies to significantly change from one…
A: BASIC INFORMATION ALLELE FREQUENCY It is bascially the frequency of the alleles which are present…
Q: Which of the following are factors that can impact genetic variation in a population? (Select all…
A: Genetic variation means that variation or differences comes in the genetic constitution of the…
Q: Rabbits with the brown coat color allele (B) are dominant over rabbits with the white coat color…
A: Given that, the brown coat color allele (B) is dominant over white coat color allele (b) of rabbit.…
Q: A. What does it mean if an allele is “fixed”? B. Explain one reason why EVEN if an allele is…
A: Allele It is the variant or alternate form of a gene. These alleles are located at the same genetic…
Q: Select all of the answers that correctly describe genetic drift. a random evolutionary mechanism…
A: Random change in allele frequency due to migration or death of population is called genetic drift.…
Q: Changes in environmental conditions can render previous adaptations as maladaptations. Describe an…
A: A maladaptation is a trait that is more harmful than helpful in evolution, as opposed to an…
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- Harvesting pressure can cause life history traits to evolve, such as the size at reproduction, or number of offspring produced. True FalseWith suitable examples, explain how mechanisms that do notinvolve adaptive traits can change allele frequencyExplain below term is true or not ? "Proportion of total phenotypic variation in a population thatis due to genetic factors"
- Construct an example of a phenotype distributioncurve for a population under directional selection that isincreasing in body size.A difference in survival and reproduction among members of a population that vary in one or more traits is called ________.Describe a situation in which a population would undergo the bottleneck effect and explain what impact that would have on the population’s gene pool.
- Predict how having a larger vs smaller population size or a larger vs smaller mutation rate will influence the maintenance of variation in populations when drift and mutation are both present.Explain the role of variation in important traits (like beak depth) in a population for the survival of a species.What is a cline? A. A gradual change in genetic or phenotypic characteristics of a population within a set geographic space. B. A gradual change in genetic or phenotypic characteristics of a population over geographic space. C. Similar genetic or phenotypic characteristics of a population within the same geographic space. D. Discrete changes in genetic or phenotypic characteristics of a population over geographic space.
- Describe the impact of founder effects and population bottlenecks on the genetic diversity of human populations. Provide examples of populations that have experienced these events and discuss their implications for the genetic makeup of contemporary human groups.Explain the disruptive selection effects on the phenotypic mean and the amount of phenotypic variation present in a population.TRUE OR FALSE:"Genetic divergence is the process whereby populations of a species accumulate differences in their gene pool due to lack of gene flow between them".