In a population of yellow mushrooms, a mutation resulted in a new purple type of mushroom that herbivores avoided. Because herbivores avoided the purple mushrooms, they were able to spread more spores and increased to make up 1% of the population. In one year, however, flash flood killed all of the purple mushrooms in the population, leaving only a few yellow mushrooms alive. Identify which evolutionary mechanism was responsible for the fixation of the yellow mushroom genotype in this population. Select one: a. Mutation b. Genetic drift c. Non-random mating Ⓒd. Natural selection * Gene flow e.

Q: Fruit scientists are trying to determine the role of the pectinase (p) gene in a plant’s ability to…

A: The mechanism of natural selection is the adaptation and modification of living organism species.

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: A student sampled a population of fruit flies in which the percentage of homozygous recessive white…

A: Given the population of fruit flies, where the percentage of homozygous recessive white eyed…

Q: You are an epidemiologist and come to an isolated village in the sub-Saharan African nation of…

A: A population's genetic variety will stay unchanged from a generation to the following if no…

Q: The ancestor of cats was presumably homozygous for wild type at all of the described genes. What…

A: Gene mapping refers to the process of determining the location of genes on chromosomes. It involves…

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: A species of aphid normally breeds and lays its eggs on the new growth of a plant in the month of…

A: The evolutionary process that helps a new species come into being is called speciation. Speciation…

Q: You assessed a population of a bacterium 10 years later and discovered that the antibiotic found…

A: Hardy Weinberg equilibrium states that allele and genotype frequencies in a population will remain…

Q: Which traits are symplesiomorphic (i.e. plesiomorphic for all ingroup species) on your tree?

A: symplesiomorphy an ancestral trait that is shared by two or more modern groups.

Q: Cod live in both warm and very cold parts of the ocean.  All cod have a gene for an antifreeze…

A: Polar fish produce a variety of glycoproteins or peptides in a non-colligative way to reduce the…

Q: Assume you are studying a population of ocean shrimp that reproduce asexually. You sequence the…

A: Evolution is defined as the change in trait of an individual over a period of time.

Q: The Chatham Islands are about 850 kilometers off the coast of New Zealand. One species of bird…

A: Taxonomy is a system for hierarchical classification and identification system for species. Carl…

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: An event occurs where a large population of photosynthetic sun-basking sharks move to a new…

A: Photosynthetic sun-basking sharks remains on surface and keep their mouths open for 40-60 seconds…

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: 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: Frequencies (in %) of mosquitoes by kdr genotype www Pre-2006 2006 Post-2006 +/+ + /r A.gambiae…

A: The inquiry is about how the kdr (knockdown resistance) genotype frequencies fluctuate over time in…

Q: The matrix below provides information about each candy 'species. Each column represents a candy…

A: Gradual process of growth and development is evolution. It has helped the species to develop into a…

Q: Scientist sampled a population and the homozygous dominant genotype was 36% for disease X. What is…

A: The population genetics is countered by following Hardy-Weinberg law and its equations.

Q: The introduction of the antibiotic methicillin was once successful in destroying Staphylococcus…

A: Antibiotics that were once commonly used to treat bacteria, later those bacteria can  develope…

Q: The red wolf (Canis rufus) was once widespread in the southeastern United States but was declared to…

A: The endangered species is a species whose number has fallen to a critically low level and is likely…

Q: 10,000 5,000 2 3 4 6 7 Months Daily Mosquito Count

A: DDT is used to kill the insect and it is an insecticide which kill them. At first when the DDT was…

Q: Compare and contrast how the bottleneck effect and the founder effect can lead to genetic drift.

A: Genetic drift is the random variations in the number of gene variants in a population. It is the…

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: A researcher studies two types of fly populations.  Population A have stubby bristles which are…

A: A Punnett Square is a graphic utilized in genetics to estimate the results of a certain cross or…

Q: A.) Based on the graph, determine whether or not the fruit fly population is evolving. Justify your…

A: Divergent evolution is the accumulation of differences across groups, which can lead to the…

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: Identify the most accurate statement about population variation.   a. Allopolyploidy occurs when…

A: Allopolyploidy is a polyploid (where organism has more than 2 sets of chromosomes) condition when…

Q: A population of lizards in Northern California is brown and is not poisonous to birds. A population…

A: Natural selection always favors the species with good adaptability and high survivability. Change in…

Q: In northern Canada, a population of rabbits was predominantly white in color. The allele for white…

A: As mentioned, the allele for white white color is recessive denoted by 'g' while the allele for gray…

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

A: Genetic drift is a change in the frequency of an allele within a population over time. Founder…

Q: A mutation in an of the recessive hemoglobin gene on chromosome 11 causes sickle-cell disease, but…

A: The sickle cell recessive allele is denoted by HbS and that of dominant allele is denoted by HbA.…

Q: Consider a locus with two alleles (b1 and b2) in a population of bacteria (bacteria are haploid).…

A: The Hardy-Weinberg principle is also known as the Hardy-Weinberg equilibrium or law in population…

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: please help

A:

Q: A population of interbreeding birds has been split by a geological event after which the isolated…

A: Species divergence is the process in which two species evolve from common ancestor due to…

Q: Imagine a huge population with a gene that has ten functionally equivalent, neutral alleles. a small…

A: A huge population with a gene that has ten functionally equivalent, neutral alleles and if a small…

Q: Both mutation rate and population size influence genetic diversity, but they do so to different…

A: Genetic diversity is a term that refers to the range of traits that are different from one another…

Q: You are studying a population of snapdragon plants on Membata Island. In snapdragons, the dominant…

A: Hardy-Weinberg equilibrium can be defined as a type of principle which states that the genetic…

Q: body, with deep red red tail feathers. An international co breeding these birds in an attempt to…

A: Gene is the basic unit of heredity. Two or more alternative forms of a gene, which arise by the…

Evolutionary lineages

An evolutionary lineage is a series of populations of organisms that descend from a common ancestor. Each species in the lineage is the direct consequence of evolutionary change from a common ancestor. A phylogenetic tree is generally used to display lineages visually. Lineages are components of the phylogenetic tree of life. Molecular systematics procedures are widely used to predict lineages.