Q: What are prezygotic and postzygotic barriers? Discuss the concept.
A: The process by which new organisms are formed from parents is referred to as reproduction. Sexual…
Q: Construct an example of a phenotype distributioncurve for a population under directional selection…
A: Directional selection occurs when a phenotypic character is preferred over the other characters.…
Q: Which of these can induce phenotypic change to future generations of a population?
A: Answer :- Option (E) is correct. - The following are induce phenotypic change to future generations…
Q: discuss the role of chance and direction in evolution and in determining the phenotype of a…
A: As the evolution is a change in a trait or characteristic that evolve over generation and this occur…
Q: What is the meaning of species characteristics and individual characteristics?
A: Species are a group of individuals or organisms that share common characteristics, particularly they…
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: Compare and contrast directional, stabilizing, disruptive, and balancing selection.
A: Stabilizing selection - whenever the average genes is selected in the population which increase the…
Q: Compare and contrast stabilizing, directional and disruptive selection with regard to how each…
A: Introduction Natural selection is the adaptation and modification of populations of living…
Q: Describe the phenomenon in which two organisms occupying the same geographical area show the same…
A: Evolution is defined as any net directional alteration or cumulative change in organisms or…
Q: Define artificial selection
A: In nature, the process of natural selection leads to evolution. The individuals with the fittest…
Q: Explain how a change in an environment can cause changes in the adaptation of a population.
A: A population is a dynamic system that is very uncertain and can be affected by a small change in…
Q: In a Gwas study, why is it important to a.) Recruit thousands of people and b. Categorize…
A: Introduction: Systems biology is an approach to understanding complex biological systems. It needs…
Q: Explain why the frequency of alleles for insecticideresistance in mosquito populations decreased…
A: Genetic studies demonstrate the resistance to insecticides in several insects can result from…
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: Behavioral isolation is considered which type of reproductive barrier? a prezygotic b postzygotic…
A: Reproductive barriers are the mechanisms or processes that prevent the reproduction ,i.e the ability…
Q: Give the major factors that cause changes in the genotype and allele frequencies of a population…
A: Evolutionary mechanisms do not operate in isolation in natural populations. Conservation…
Q: Define phenotypic adaptation.give one example.
A: In the living world, we see a large number of microorganisms, animals and plants. These organisms…
Q: compare and contrast sources of genetic and phenotypic variation
A: Genetic variation is defined as variations or changes that occur in the genetic makeup of…
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: Discuss criteria or measurements by which you might conclude that a population is better adapted…
A: Evolution is a process that results in some heritable changes in the population. These changes may…
Q: Diagram how plant breeders use truncation selectionto improve agricultural crops.
A: Plant breeding is the technique to raise the desired plants and seedlings through, biotechnological…
Q: Changes in allelic frequency that leads to novel populations is an example of
A: Changes in allelic frequency that leads to novel populations is an example of microevolution.
Q: a. Suggest TWO causes of variation among members of the same species Your answer
A: The above graph between the height of a sample of a men in population and the number of men posses…
Q: Describe genotype frequencies and allele frequencies in a population.
A: The frequency of genotype in a population is the number of people with a given genotype divided by…
Q: With suitable examples, explain how mechanisms that do notinvolve adaptive traits can change allele…
A: Allele frequency means frequently appearance of particular allele appears in the population. Change…
Q: Discuss the role of chance in determining the phenotype of a population
A: Evolution is a natural process that includes several changes over many generations in the…
Q: Explain the phrase “nature vs. nurture
A: Nature is impacted by genetic inheritance and other biological variables, and is thought to be…
Q: Examine the assertion that inherited factors are indispensable in determing the appearance of an…
A: The inheritance of each trait is determined by 'factors' known as genes that are passed onto…
Q: Prezygotic barriers include all of the following, except for
A:
Q: Describe the similarities and differences among directional, balancing, disruptive, and stabilizing…
A: The process of natural selection can operate in a population either in the form of directional,…
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: Explain, draw, and provide example of directional, stabilizing and disruptive selection.
A: Alteration in the inheritable traits, over long periods, can happen in a population. It is…
Q: explain about the genetic drift -differentiate founder effect from bottleneck effect.
A: Evolution is a steady phenomenon which bring about transformation of life from much simple one to…
Q: describe species adaptation and populations
A: Adaptations are characteristics of an organism that assist it in surviving in a specific…
Q: Use examples to distiguish between continuous and discountinuous variation
A: The differences existing between individuals within a species are termed as a variation. The…
Q: The species-area relationship described by MacArthur and Wilson holds true
A: Species area relationship : It is also known as species area curve which describes the relationship…
Q: Define phenotypic adaptation. Give one example.
A: Phenotypic adaptations refer to changes in the appearance of organisms as a result of genetic…
Q: what is an inductive environmental cue? can you give an example ?
A: In natural conditions, organisms feel the continuous change in environmental conditions such as…
Q: a) Name the evolutionary mechanism that is most likely causing allele frequency to change and…
A: Evolution is the key to understanding the development of species from a long time. Evolution would…
Q: Of which postzygotic barrier is the mule an example?
A: Introduction:- the mule has 63 chromosomes and is therefore infertile.
Q: Directions: Explain and give example for each type of reproductive isolating mechanisms. Pre-zygotic…
A: Prezygotic isolation mechanism do not allow the fertilization of eggs while postzygotic isolation do…
Step by step
Solved in 2 steps
- What example illustrates the point that even if some characteristic is highly heritable, a change in the environment can alter it?Behavioral isolation is considered which type of reproductive barrier? a prezygotic b postzygotic c overlapping d heritableGive typing answer with explanation and conclusion explain how the F.I.T.T principle is applied to different populations.