Two hundred years ago, the fly species Rhagoletis pomonella only laid its eggs on fruit of the hawthorn tree. Today, different "host races" of R. pomonella lay their eggs on hawthorns OR apples. Apples occur within the range of hawthorns, so divergence between apple flies and hawthorn flies could be the first step in sympatric speciation. Choose the evidence that would suggest that R. pomonella is currently undergoing sympatric speciation. Check ALL answers that apply.   A. Apple flies and hawthorn flies are able to form fertile hybrids.   B. Apple flies and hawthorn flies are physically indistinguishable from each other.   C. Apple flies typically mate with apple flies, and hawthorn flies typically mate with hawthorn flies.   D. Apple flies and hawthorn flies emerge from their hosts at different times of the year.

Q: Assume you are studying two species of lizard that occur in sympatry. In allopatry, Lizard Species A…

A: Speciation is the evolutionary process by which populations evolve to become distinct species.…

Q: Notice that a couple of things are different from the previous charts. Firstly, the derived traits…

A: Maximum parsimony method is based upon the principle of minimum number of steps. The correct tree is…

Q: Species a: the woodland vole (Microtus pinetorum) Species b ( relatively closely related to species…

A: When populations evolve to become different and distinct species, the process is known as…

Q: Why does sympatric speciation via allopolyploidy occur? O A. When disruptive selection and…

A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…

Q: Homologous genes that arise from speciation and gene divergence are called _____.

A: Homozygous is defined as a condition during which an individual inherits the same alleles or…

Q: Imagine that you wanted to know if speciation rate in plant groups is linked to whether the plants…

A: Answer- Correct option is (A) Pollination is transfer of pollengrains from the anther of one flower…

Q: A population of chipmunks lives across the length of a valley in the mountains. One day a large…

A: The process of genetic divergence or gene pools of populations to form new species is called…

Q: The wildfires in California are destroying vast areas. Given evolutionary concepts you have learned…

A: Wildfires are raging across California, as the state faces a record-breaking fire season due to the…

Q: Frogs have external fertilization; however, the male frog will jump on the female and squeeze her to…

A: Mechanical isolation, or mechanical reproductive isolation, is demonstrated by the reproductive…

Q: If two groups of mice live on opposite sides of a river, they are two separate species. What two…

A: It is a group of living organisms consisting of similar individuals capable of exchanging genes or…

Q: true or false, Sexual selection may lead to sympatric speciation

A: Speciation is a term which describes the process in which new species forms from the existing…

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: Which of the following is an example of postzygotic reproductive isolation?a. Sperm of species A…

A: A group pf similar organisms which are able to interbreed to produce fertile and viable offspring is…

Q: This figure can be used to represent the sequence of events leading to the evolution of dark-furred…

A: Evolution is the change in the characteristics of a species over several generations and relies on…

Q: Nhich of these is an example of allopatric speciation? Two species of finches that have differing…

A: Allopatric Speciation happens when a species divides into two different species because of some…

Q: A few finches from the mainland get caught in a strong wind and end up colonizing a new island.…

A: Hardy Weinberg (HWE) principle – In HWE the genotype frequencies and allele frequencies of a…

Q: Would each of the following examples of reproductive isolation be considered a prezygotic or…

A: Reproductive isolation is one of the mechanisms of speciation. Evolutionary mechanisms, behaviors,…

Q: Imagine a field of monkey flowers. Some of them are pink and others are red. It turns out that the…

A: Speciation is the process of development of new species from a pre existing species  When a species…

Q: The goldenrod gall fly mates and lays its eggs on the goldenrod plant and the larva live inside the…

A: Speciation is the process in which new species are formed due to either geographical isolation or…

Q: Sympatric speciation by allotetraploidy has been proposed as acommon mechanism for speciation. Let’s…

A: The process of formation of new species from old species during evolution is termed speciation.…

Q: Given the cladogram and the geographic information, is it likely that the Panamanian species arose…

A: Allopatric speciation is caused when a particular species is separated into two geographical…

Q: Two populations of beetles live in a desert environment, separated by a wide river. A sudden climate…

A: Speciation:  When a group of organisms belonging initially to the same group, get separated into two…

Q: genome duplication event, creating a tetraploid plant from a diploid parent plant, can sometimes…

A: Sympatric speciation involves the splitting of an ancestral species into two or more reproductively…

Q: Scientists studying reproduction compared three closely related species of bagworm moths. The…

A: Reproduction is the biological process for producing new young ones from parent.

Q: Which of the following may be true of two species that are a result of allopatric speciation? Select…

A: Speciation is the process of formation of new species. When mutations accumulate in the organisms…

Q: Some females seem to prefer the blue color and some females seem to prefer yellow color. If this a…

A: Disruptive selection result in sympatric speciation :-

Q: You become interested in monarch butterfly conservation and begin investigating milkweeds (genus…

A: The initial stage in the construction of a phylogenetic tree involves the meticulous analysis of DNA…

Q: Below is an aligned DNA sequence dataset for three species and their outgroup. Draw the maximum…

A:

Q: Both a beetle and a lobster are arthropods, a monophyletic group of animals that have an exoskeleton…

A: Ans- D) Homology As both lobster and beetle have antennae that as modified legs and act as sensory…

Q: Speciation can be initiated when grasses colonise contaminated soils at former mine sites from…

A: Speciation is the process of formation of one or more species from an existing species. A species is…

Q: Which of the following would be a good example of premating reproductive isolation?

A: Premating reproductive isolation refers to mechanisms that prevent individuals of different species…

Q: A population of lizards colonizes a region and feeds on small arthropod species. Over time, a small…

A: Speciation is the process through which new species emerge from the existing ones. Speciation may…

Q: In lizard species "A" the males approach the females directly, bobbing their whole body up and down…

A: Reproductive barrier is a phenomenon in which two individuals either do not able to reproduce. If…

Q: Which of the following is not an event that can contribute to allopatric speciation?   a. A…

A: Speciation is that lineage-splitting evolutionary process in which new species evolve from original…

Q: How come dispersal is still allopatric speciation? I was under the impression that a new…

A: Allopatric speciation is the divergence of physical separate populations of a species, occupying…

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.