Natural selection is a gradual, nonrandom process by which biological traits bec
ID: 300041 • Letter: N
Question
Natural selection is a gradual, nonrandom process by which biological traits become more or less frequent within a population. Which of the following are necessary conditions for natural selection to occur within a population of Staphylococcus aureus?
Natural selection is a gradual, nonrandom process by which biological traits become more or less frequent within a population. Which of the following are necessary conditions for natural selection to occur within a population of Staphylococcus aureus?
Traits that permit an individual to survive at least until reproduction will increase in frequency over time. There is adaptation. Some individuals in the population reproduce more than others. Traits are hereditary. Some individuals within the population are optimally adapted for survival. Individuals in the population vary from one another. Deleterious (harmful) genes are removed from the population.Explanation / Answer
The following are necessary conditions for natural selection to occur within a population of Staphylococcus aureus
Some individuals in the population reproduce more than others.
Traits are hereditary.
Individuals in the population vary from one another.
Traits that permit an individual to survive at least until reproduction will increase in frequency over time.
Explanation:
Natural selection is differential survival and the phenotypuc differences in the individuals is due to the reproduction in individuals. Individuals often develop favorable traits via natural selection & genetic variations in the successive generations with evolution of new traits in the new species as an evolutionary adaptation to attain adequate offspring fitness and to struggle for the existence. Natural selection is always occur in a population (ex. Staphylococcus aureus) if there are genetic variation for a trait in that population followed by heritability of that specific trait to the offspring as an evolutionary adaptation.
Mutations also induce natural selection and evolution of new traits in Staphylococcus species to some extent but majority of random mutated genetic changes result in formation deleterious genes therefore it is essential to remove those traits from the population for natural selection to take place with differential reproductive success
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