Before the industrial revolution of the nineteenth century, there was a wide distribution of colors In the peppered moth. Predatory bird Original population Phenotype Upon the darkening of tree bark by Industrial pollution, dark- colored moths increased in frequency and all other moths decreased. Prodatory bird Industrial polution population Light- and dark-colored moths on dark tree bark Phenotype After clean-air legistation was enacted in the tworntieth century, the bark color of trees became lighter, and so did the froquency of lighter-colored moths. Predatory bird Clean-air population Light- and dark-colored moths on light troe bark Phenotype (%) uopendod (%) uopejndod u kouenbe (%) uopendod Frequency in Frequency in

Q: What is the Evidence That Populations Evolve by Natural Selection?

A: Evolution is the process of heritable change in the characteristics of an organism. Such changes…

Q: An allele A is present in a population at a frequency 8f the same locus. Fitness is associated with…

A: Natural selection can induce microevolution, or a shift in allele frequencies over time, with…

Q: A recessive lethal allele has achieved a frequency of 0.22 due to genetic drift in a very small…

A: The frequency of the recessive allele would be about 0.13.

Q: Explain Changes in allele frequencies caused by selection?

A: Natural selection is the process by which organisms better adapted to their environment tend to…

Q: For a chamelons ability to color change, what type of selection (directional selection, stabilizing…

A: Natural selection can bring the adaptive evolution . It will increases the frequency of allele that…

Q: Allele frequencies in a population should remain constant unless one or more factors cause those…

A: Evolution is a steady phenomenon which causes transformation in life from simple one to much more…

Q: When we take, say, 100 individuals of a species of beetle from the wild and place them in a new…

A: Each environment that an organism inhabits is distinct from the others. Its natural habitat is…

Q: you (should have) learned that selection alone cannot purge a population of the very last copy of a…

A: The mechanisms that can get rid of the last deleterious allele are random mating and mutation.

Q: Suppose that, in one generation, the frequency of the A allele is 40 percent (p=0.40) and the…

A:

Q: How can natural selection maintain harmful alleles in a population?

A: The process in which a population of living organisms adapts to their environment by certain changes…

Q: Evolution is a change in the allele frequencies that occur in an individual over time. True or…

A: The objective of the question is to determine whether the statement 'Evolution is a change in the…

Q: Examine figure 37.9 and its caption carefully. Which proglottids, mature or gravid, occur closest to…

A: Step 1 Platyhelminthes is a phylum of dorsoventrally flattened, acoelomate but triploblastic animals…

Q: Which microevolutionary force leads to adaptive changes in allele frequencies?

A: There are few evolutionary forces which changes the allele in population Mutation -  abbreviation…

Q: A hypothetical population has two alleles for an "T" gene: T and t. In a random sample of 50 diploid…

A: The Hardy-Weinberg rule states that if mating is random and mutation, selection, immigration, and…

Q: Which mechanisms of evolution cause random changes in allelefrequencies? Which cause nonrandom…

A: There are four types of method which changes its frequency Gentic drift Mutation Natural selection…

Q: Several generations of population X have been studied.  The dominant phenotype frequency for the…

A: The allele frequency is the rate at which a specific allele appears within a population. Evolution…

Q: Sexual selection tends to cause bigger size,more elaborate weaponry, or brighter colors in males. Is…

A: Natural selection is the method by which a population of living organisms accommodates and develops…

Q: Which mode of selection is acting on the three Biston betularia populations shown? How can you tell…

A: Biston betularia, the peppered moth, was a model organism for evolutionary research in the twentieth…

Q: othetical population has two alleles for an alleles), the following genotypes were found: 15 TT, 25…

A: An allele frequency is calculated by dividing the number of times the allele of interest is observed…

Q: In a population of 1000 turtles, you observe the following genotypes: TT - 580 Tt - 320 tt - 100…

A: Allele frequency is the relative frequency of an allele on a genetic locus in population.It is…

Q: A population consists of 7 mice. For the coat color trait, there are only two alleles: brown (B) and…

A: The alleles are the alternative forms of a gene that are located on the same locus of a homologous…

Q: There are three modes of natural selection: stabilizing selection, directional selection and…

A: Natural selection can be defined as the differences in the strategies of survival and reproduction…

Q: Of the three patterns of natural selection presented in this discussion, which one always results in…

A: BASIC INFORMATION EVOLUTION The theory of evolution was first given by the Jean Baptist de Lamark.…

Q: Green dragons are known by Knights of the Realm to be cleverer and thus more dangerous than both red…

A: dN/dS ratio tells us about the evolutionary pressure of selection on a gene coding for a protein and…

Q: Why is genetic drift more significant in small populations? Why does it take longer for genetic…

A: Genes are the basic structural and functional unit of heredity. They carry coded genetic information…

Q: Under what scenaries is genetic drift most potent as an evolutionary process? how do factors like…

A: Genetic drift is the change in frequency of alleles  from one generation to another, which occur due…

Q: population of birds has two alleles encoding for three different phenotypes: long wings, wingsss,…

A: The Hardy–Weinberg principle is based on the following assumptions: (1) random mating (i.e., there…

Q: NASA is planning on sending a colony of Snow Monkeys to mars to determine how evolution will…

A: The Hardy–Weinberg law depicts the connection among allele and genotype frequencies when a populace…

Q: Polydactyly (being born with more than 5 fingers or toes) is caused by a dominant allele of a single…

A: Assumuing the population is in Hardy-Weinberg equilibrium,  p2 + 2pq + q2 = 1 p2 = frequency of the…

Q: An island had an equal proportion of white- and black-coated mice. Eagles found the island and…

A: Introduction A predator is an organism that consumes all or part of the body of its prey, which may…

Q: If mutation introduces a new allele into a population, what will happen to the frequency of the…

A: The Hardy-Weinberg principle states that in a very large populations, the allele frequencies…

Q: What does the Hardy-Weinberg model tell us about the factors that can change allele frequencies in…

A: Introduction Hardy - Weinberg Principle:- The Hardy–Weinberg principle, also known as the…

Q: The allele for dark hair color is dominant (B). The allele for light hair color is recessive (b). If…

A: Introduction  In population genetics, the Hardy-Weinberg principle, often referred to as the…

Q: Is it easier for selection to remove a deleterious recessive allele from a randomly mating…

A: Evolution is the change in the characteristics of the individual over several generations.  Natural…

Q: American cat breeders are trying to establish a new breeed of cat with unusual, curled-back ears, to…

A: According to Mendelian inheritance, a single character is controlled by one or more genes and each…

Q: Which type of selection is represented in a population of birds where a wing span of 2ft rather than…

A: The survival and reproduction of individuals within a population change depending on their heritable…

Q: The trait that natural selection “selects for” is lifetime Darwinian fitness.  If relative matching…

A: The peppered moth's melanism was an early test of Charles Darwin's characteristic determination in…

Q: Why is mutation important to evolution if it is the microevolutionary force that generally has the…

A: Microevolution is the evolution that acts on a small population or in a single species and it is…

Q: ppose you have four species of lizard and you are interested in how leg length will ange in a single…

A: According to Breeder's equation -R= h2S.Where, R is the response to selection, S is the selection…

Communication

Communication is a method of transferring information between two persons or organisms. Communication is possible using mutually understood behaviors such as signs, symbols, or language. In the year 1980, S. F. Scudder proposed communication theory. According to his ideas, all living beings on the earth communicate, but the methods of communication differ. Communication skills are now part of soft skills.