Consider the first copy of an allele for insecticideresistance that arises by mutation in a populationof insects exposed to an insecticide. Is this mutation an adaptation? If, after some generations,we find that most of the population is resistant,is the resistance an adaptation? If we discovergenetic variation for insecticide resistance in apopulation that has had no experience of insecticides, is the variation an adaptation? If an insectpopulation is polymorphic for two alleles, eachof which confers resistance against one of twopesticides that are alternately applied, is thevariation an adaptation? Or is each of the tworesistance traits an adaptation?

Q: A population of 30 individuals has a mutation that generates a new allele “a”.  This new allele…

A: "Genes" are the fundamental unit of heredity. They store genetic information in the form of DNA,…

Q: Two populations of snakes are separated by a river. The snakescross the river only on rare…

A: Species refers to group of organisms that can interbreed among themselves to give rise to fertile…

Q: Galactosemia is a rare autosomal recessive disease that causes mental retardation. Individuals with…

A: In neutral mutations, the rate of mutation is equal to the  rate of substitution.    Mutations…

Q: Which of the following is the most predictable outcome of increased ge ulations? ower average…

A: A gene is a section of DNA where a function is encoded. A chromosome is a lengthy DNA strand that…

Q: Passive transport of small molecules that generate energy hrough their movement Facilitated…

A: Different types of transport processes occur inside the cell in order to maintain the homeostasis.…

Q: A population of snails has a deleterious mutation (m) with a mutation rate of 0.01. Heterozygotes…

A: Introduction  A mutation is a change in the genetic material (DNA or RNA) of an organism. Mutations…

Q: On the right is a figure showing the reconstructed route of colonization of a rodent species found…

A: Evolution is a process that results in changes in the genetic material of a population over time.…

Q: Once upon a time there was a population of hippies living in an isolated commune called Gone. They…

A: This principle states that the gene frequency remains constant from generation to generation and is…

Q: gene for pea pod colour has two alleles. The dominant allele, G, is associated with the dominant…

A: According to Hardy weinberg equilibrium p2 + q2 + 2pq = 1 and p+q=1² p= frequency of the dominant…

Q: There is an outbred population of mice living in a farmer’s field. Mutations occur at a gene called…

A: A population is a group of individuals of the same species inhabiting a specific geographical area.…

Q: We learn that a locus in eucalyptus trees codes for drought tolerance. On average during a drought,…

A: Hardy Weinberg equilibrium or principles states that allele frequencies in a population remain…

Q: A genetic mutation that causes deafness in humans has an autosomal recessive pattern of inheritance.…

A: In genetics, the hardy-weinberg principlestates states that the genotype frequencies will remain…

Q: Mutations are the ultimate source of genetic variation. Consider a population of 500 diploid…

A: If a mutation occurs in one individual, it means that there is now one copy of the new allele in the…

Q: Researchers monitored an isolated population of a rare species of orchid (Isotriamedeoloides) and…

A: Question a. Effective Population Size (Ne) Step 1: Formula determinationThe formula for the temporal…

Q: The ratio of nonsynonymous differences pernonsynonymous site, dN, to synonymous differences per…

A: The random changes in the sequence of nucleotides lead to mutation. Some mutations or changes are…

Q: An hypothesis for the extinction of the dinosaurs is that the earth had been hit by a gigantic…

A: This type of gene frequency change is called Genetic Drift.

Q: had trouble with explaining how natural selection affects alllele and genotype frequency. Does…

A: Natural Selection : It is a type of evolution. It is the process through which populations of living…

Q: he evolution of a qualitative trait in reponse to natural selection is described by the following…

A: Genetic progress is defined as the progress in the genetic value of the offspring generation which…

Q: Consider the gene that determines Rh blood type in human beings. This gene has two alleles (D, d)…

A: Genotype and allele are two fundamental concepts in genetics that help us understand how traits are…

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: Long term trapping and monitoring studies have estimated that on average 3% of the populations move…

A: 4a)The frequency of K in the forest population in the next generation can be calculated using…

Q: Why is a balancedfrequency of different allelesof a gene in a population moreuseful for the survival…

A: The genetic variation is the genetic differences that occur naturally among the individual of the…

Q: In experiment of genetic drift, suppose you have a population of 300 butterflies. if the population…

A: Genetic drift refers to sudden changes in the genotype composition of the population. There should…

Q: Figure 19-9 shows the trait distributions before and aftera cycle of artificial selection. Does the…

A: Genetic variance is a concept that postulates that the rate of change of biological fitness can be…

Q: A particular recessive genotype shows a frequency of 16 % in a given population . Answer the…

A: As per Hardy Weinberg Equilibrium, p is the dominant allele. q is the recessive allele. Sum of…

Q: In a certain population, D is a dominant, wild-type allele of a gene encoding a protein important…

A: Allele frequency in a generation occurs due to gene flow , genetic drift , natural selection and…

Q: Provided with the evidences on the picture, choose which of these represents descent with…

A: Natural selection as well as other factors can help these alterations get entrenched in a whole…

Q: A group of four birds flies to a new location and starts a newcolony. Three of the birds are…

A: Genetic is the branch of science that deals with genetic material like genome, genes, DNA, and…

Q: Assuming that the mutation rate is µ/gamete/generation and the population size is N diploid…

A: Mutations are modifications to an organism's genome's DNA sequence. They can happen by a number of…

Q: The original source of new alleles, upon which selection operates,is mutation, a random event that…

A: Mutation are sudden inheritable change in the genetic makeup that effect the organism functioning or…

Q: What is the p-value you calculated (record two decimals)? You can use this online calculator .

A: The chi-square (x2) test is performed to analysis the acceptance or rejection of the null…

Q: Which of the following is NOT a valid evolutionary explanation for why aging (or senescence)…

A: An organism begins to weaken and frailty as it ages, which is a natural occurrence. Once a person…

Q: Two traits with similar phenotypic variance exist in apopulation. One trait has two major genes and…

A: Phenotype is a characteristic of external appearance in morphology which is produced as a result of…

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: When artificial selection is practiced over many generations, it iscommon for the trait to reach a…

A: A gene is a basic structural and functional unit of heredity. Artificial selection between different…

Q: Which of these scenarios is an example of disruptive selection?

A: Types of natural selection is - 1.Stabilizing selection - It favours mean character and rejects…

Q: Once upon a time there was a population of hippies living in an isolated commune called Gone. They…

A: The allelic frequency is calculated by number of that alleles/total number of alleles.

Q: | What is translational repression? Explain why do cells use translational regulation to respond to…

A: Translational repression consists of  cellular and enzymatic reactions that inhibit the  process by…

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: Say there is a population of plants that live in a wetland, and are adapted to tolerate both…

A: As per the rules of evolution, there is a process of natural selection and the survival of the…

Q: Different species of crickets have distinct songs, andthey use these songs for mate recognition.…

A: Part A. The additive effects are found as: A=(XKK-XPP)/2 The dominance effect can be easily found…

Q: In a population of yellow mushrooms, a mutation resulted in a new purple type of mushroom that…

A: Introduction :- Non-random mating occurs when individuals in a population choose mates based on…

Q: A/A and A/a individuals are equally fertile. If 0.1 percent of the population is a /a, what…

A: Selection pressure is defined as those external agents that affect the ability of an organism to…

Evolutionary adaptations

Evolutionary adaptation is the process through which organisms adapt or adjust to their surroundings to increase the chances of survival, mating, and reproduction. An organism's behavior, physiology, and structure are adjusted or changed to make it more suited to its environment.