What are prezygotic and postzygotic barriers? Discuss the concept.

Q: What are prezygotic and postzygotic barriers?

A: The phenomenon of evolution of a population to form distinct species is called speciation. A group…

Q: Which of the following are benefits of movement corridors? (choose all that apply) They may…

A: Introduction Animals Use Movement Corridors To Travel From One Habitat To Another. They Are Long,…

Q: How does genetic flow affect the recipient population

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Q: Discuss how variation in the length of the neck in the giraffe would help a population of giraffe…

A: Answer

Q: Compare and contrast reproductive strategies and forms ofsexual selection.

A: Sexual reproduction is a pattern of gametes involved in fertilization process and producing the…

Q: Imagine that you are a conservation biologist responsible for the well-being of a bufello herd…

A: the Hardy-Weinberg equilibrium states that genetic variation in a population will remain constant…

Q: What happens if species with incomplete reproductive barriers come into contact with one another?

A: Evolution is defined as the changes in the heritable characters of a population during the course of…

Q: Distinguish between prezygotic and postzygotic isolating mechanisms, and provide an example of each.

A: Reproductive isolation is a type of mechanism which retains species from mating with others to form…

Q: What factors determine the amount of variation in a population and in a species?

A: Any kind of changes that enable a change in the genotype and the phenotype of an individual is…

Q: A group of snakes were all placed into environments that had differing selective pressures. Read the…

A: Natural selection of a particular trait can take place in 3 ways; they are Directional selection :…

Q: Identify each of the following reproductive barriers as prezygotic or postzygotic. a. One lilac…

A: The barriers or differences in geographical, behavioral, physiological, or genetic factors prevent…

Q: Which of these is an example of the founder effect? Emperor penguins walk to a breeding site.…

A: When from a large population, due to any reason a smaller group gets isolated and establishes itself…

Q: Explain the disruptive selection effects on the phenotypic mean and the amount of phenotypic…

A: Disruptive selection is the selection that selects the individuals with extreme values rather than…

Q: What are interesting facts that applies to adaptation as a unifying theme

A: Indroduction: Although biology, literally, the "study of life", what is meant by "life" varies…

Q: What is the key difference between prezygotic and postzygotic isolating mechanisms? Give an example…

A: Introduction: The reproductive isolation mechanisms are a set of evolutionary mechanisms,…

Q: What does it mean when alleles in a population coalesce?

A: A gene might be a subtype of a factor. Some genes come in a variety of shapes and sizes, each of…

Q: Explain the significance of reproductive isolating mechanisms and distinguish among the various…

A: Reproductive isolation is a common term used for a set of mechanisms that are put in place to…

Q: what kind of traits influence how a species contributes to a community? give an example TIA!!

A: In science, a species is a fundamental unit of order and a taxonomic rank of a creature, just as a…

Q: Consider the island model with one-way migration. An island is originally inhabited by 1000…

A: The Hardy-Weinberg law states that the genes and genotypic frequencies of a Mendelian population…

Q: What are consequences of overpopulation?

A: Population is defined as the number of organisms of the same species that live in a particular…

Q: Which of the following graphs shows the most likely outcome of how allele frequencies will change…

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

Q: Discuss the case of sickle-cell disease as an example of stabilizing selection.

A: Sickle cell disease or sickle cell anaemia is a heritable disease that affects the haemoglobin…

Q: Compare and contrast directional selection and disruptive selection, and provide an example of each.

A: Directional selection is a kind of natural selection in which only a single phenotype is favored…

Q: Pre-zygotic barriers may result in splitting of populations. O True False

A: Reproductive isolation Reproductive isolation is a process by which the species are prevented from…

Q: in your own words, describe how genetic diversity makes a population resilient to environmental…

A: Genetic diversity is defined as the potential to resist a number of epidemics as well as diseases.…

Q: Could a set of invading genotypes with the “parachute” strategy take over a population that…

A: The genotype with parachute strategy will get advantage than the other individuals. Other…

Q: What do each arrow represent

A: Intraspecific competition: It defines an interaction of a population where members of a species…

Q: Prezygotic barriers include all of the following, except for

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Q: What is h2 based on both sire and dams information, if σe2 = 380, σdams2 = 16 and σsires2 = 24 when…

A: Introduction Profitability of a pork production system relies on reducing the cost per unit of…

Q: How might social dominance within a population regulate population growth? In your opinion, does it…

A: Evolution is the main cause for the changes in the environment. Due to evolution new species are…

Q: What are some ways another kind of natural selective felt by a species ?

A: Darwin postulated the theory of evolution by natural selection in the book known as ‘origin of…

Q: Give one example of how allele frequencies change from one generation to the next due to mutation,…

A: Mutation:  is an alteration in the nucleotide sequence of the genome of an organism, virus, or…

Q: What long-term effects can gene flow have on any two populations that are exchanging genes?

A: Gene flow is the movement of alleles of genes from one population to the other. This happens as a…

Q: Does having a dominant allele mean that it will be found in greater frequency in the population?…

A: Dominant allele frequency in the population.

Q: What factors influence gene flow between populations?A. The home range size of the species.B.…

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Q: What are the barriers that affects the mating of species (in relationship with inbreeding)?

A: Introduction :- A species is the biggest collection of organisms in which any two individuals of the…

Q: Select one example to demonstrate how evolutionary behavioral ecologists view the phenomenon of what…

A: Evolutionary behavioral ecology is the study of how the behavior of a species or a population within…

Q: What example illustrates the point that even if some characteristic is highly heritable, a change in…

A: The degree of variability in the phenotypical characteristic in a population is estimated using…

Q: Explain why a harmful allele can persist at high frequency ina population.

A: An ALLELE of a gene having impacts on the PHENOTYPE are expected to result in a decrease in FITNESS…

Q: What does the high density of elephant population in an area can result?

A: BASIC INFORMATION POPULATION INTERACTION It is basically the interaction between the different or…

Q: Which type of selection best describes the shift in peppered moth from the light form to the dark…

A: Peppered Moths are a kind of moth found in the United Kingdom. Some of them are white, while others…

Q: Of which postzygotic barrier is the mule an example?

A: Introduction:- the mule has 63 chromosomes and is therefore infertile.

Q: What is an example of a populations with organisms?

A: The population is defined as a group of individual species living at a particular place. The…

Q: When males and females of a population look or act differently, it is referred to as ________. a.…

A: Inheritance or heredity is passing on one trait from the parents to the progeny by either asexual or…

Q: Classify the following scenarios with the appropriate term regarding different types of reproductive…

A: A new species emerges or speciation occurs when organisms in a portion of the population cannot…

Prokaryotic evolution

The term evolution means the gradual change or a transformation from a simple or primitive state to a complex or advanced state. Prokaryotic evolution is a concept that involves the evolution of the form and function of most primitive organisms (prokaryotes) through several stages and changes to form diverse life as a part of organic evolution.