Over time, enough genetic variations can develop within a population to cause it to undergo speciation. Identify the various mechanisms that will prevent different species from being able to reproduce successfully. Which of these mechanisms is the most influential in keeping species sperate?

Q: Steven Frank and Laurence Hurst argued that a cytoplasmically inherited mutation in humans that has…

A: The mutation is the sudden deleterious effects in the DNA sequences, they can arise when the DNA is…

Q: Charles Darwin’s claim, that the species level of classification is just as arbitrary as that of any…

A: In biology, a species is the basic unit of classification. It is defined as the largest group of…

Q: recognized as a mechanism of speciation by either Darwin or the researchers of the "new synthesis".…

A: Hybridization is the process by which different varieties or species naturally or artificially are…

Q: Postzygotic reproductive barriers are related to the progeny. Which one is a result of…

A: Reproductive isolation is a phenomenon in which two individuals unable to breed successfully so…

Q: What is the basic difference between the allopatric and sympatric modes of speciation?

A: Speciation is the process of evolution in which the new species arise in a given population by means…

Q: A new beneficial mutation arises in a population of bacteria (haploid microbe) with a population…

A: Mutation refers to a change in the nucleotide sequence of the DNA contained in the genome of an…

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: Prezygotic isolating mechanisms prevent hybrid offspring from occurring between species because (a)…

A: One of the main criteria for speciation is the reproductive isolation between the different two…

Q: 1. What is speciation? 2. What is a “hybrid zone”? 3. What postzygotic barriers are often…

A: A widely accepted definition of a species is a group of organisms that are able to interbreed and…

Q: What are causes of this latitudinal diversity gradient, and what are its consequences?

A: Latitude gradient diversity  Latitude gradients of the diversity are described as the biogeographic…

Q: Over many generations, there is a good chance that an advantageous gene will be shared by every…

A: Population is any group of individuals living together.

Q: Secondary contact only plays a role in some of the speciation modes. Name the mode(s) of speciation…

A: Species include organisms that can interbreed. This interbreeding between the members of the species…

Q: What factors can support the long-term stability of a hybrid zone if theparent species live in…

A: A hybrid is an offspring resulting from combining the qualities of two organisms of different…

Q: Three species are endemic to a group of islands and are all descended from species 4, a large…

A: Natural selection is an evolutionary process through which natural factors ensure the survival of…

Q: Pre-mating barriers to reproduction often evolve relatively late in the process of speciation.…

A: Reproductive barriers are barriers that prevent reproduction between two different groups of…

Q: What is a modern-day example of Bokanovsky’s Process from BNW (creating many human beings from one…

A: Bokanovsky's Process is described in the novel Brave New World. The process takes one ovum and…

Q: What are hybrid zones, and why can they be viewed as“natural laboratories” in which to study…

A: Species is defined as the classification that comprising associated organisms that have the ability…

Q: Some degree of genetic exchange occurs in bacteria, which reproduce mostly asexually. What…

A: The biological species concept (BSC) is a widely accepted concept for species. It defines the…

Q: What is speciation? List any two events that lead to speciation?

A: The organism is the individual entity that embodies the properties of life. It is divided into…

Q: Explain why translocations contribute to speciation.

A: Gene translocation is the mechanism by which genetic materials are exchanged between chromosomes.…

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: A population of 600 scorpions was split into four populations when irrigation canals were built…

A: Introduction :- Genetic drift is a random fluctuation in the frequency of alleles in a population…

Q: New species only evolve from two previously existing independent species, never hybrid species…

A: Speciation is the process by which new species arise. It occurs when a population becomes…

Q: What conditions must exist for frequencies to remain stable over multiple generations?

A: Hardy-Weinberg equilibrium concept gives us idea about the constant value of allele and gene…

Q: Speciation events can occur on a variety of timescales. Which factor is NOT likely to influence the…

A: Speciation is the process by which a single species evolves into two or more distinct species over…

Q: Charles Darwin’s claim, that the species level of classification is just as arbitrary as that of any…

A: In biology, a species is the basic unit of classification. It is defined as a group of living…

Q: Swordtails, platyfish and Poecilia species are incapable of interbreeding with each other but…

A: Biological species defines the ability of two organisms to mate and produce offspring successfully…

Q: Which of the following is NOT considered a genetic isolating mechanism?   Question 2 options:   a)…

A: The question asked here, is to find which of the option is not a genetic isolating mechanism. For…

Q: Why is variation beneficial to the species but not necessary for the individual?

A: Variation is defined as any difference between cells, individual organisms, or groups of organisms…

Q: How can speciation occur sympatrically?

A: The group of organisms that possess the ability to interbreed and result in the production of…

Q: What are three biological ways in which diversity and variation arises in individuals of species? In…

A: Variations are the differences in the genes among the individuals in a population that brings about…

Q: How, then, can speciation occur if gene flow exists?

A: Speciation are group of interbreeding natural population . Speciation is the formation of one or few…

Q: An invasive species specialist often observes an introduced frog species spawning in small ponds…

A: Reproductive isolation can be defined as the phenomenon in which the animals are unable to…

Q: Compare the forms of speciation that are slow to those that occur more rapidly. Make a list of the…

A: Speciation is defined as the formation of new and distinct species in the course of evolution. It…

Q: What is the main difference between allopatric and sympatric speciation?

A: Speciation is a process in which origin  of new species takes place in a population depending on a…

Q: If the hybrids do not become reproductively isolated from their parent species and form a new…

A: The formation of new species from parental species takes place through the process of speciation…

Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.