OBJECTIVE LIFE SCIENCE
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The individual organism decides to adapt
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Mutations that give an organism an advantage in its environment
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Genetic recombination during meiosis
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Both mutations and genetic recombination are sources of adaptation
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Detailed explanation-1: -Adaptation occurs when: The environment changes or a species is introduced to a new environment. A species is able to survive in the changed habitat for long enough to adapt. There is genetic variation within a species, so that some individuals are better suited to the new environmental conditions than others.
Detailed explanation-2: -If the mutation has a deleterious affect on the phenotype of the offspring, the mutation is referred to as a genetic disorder. Alternately, if the mutation has a positive affect on the fitness of the offspring, it is called an adaptation.
Detailed explanation-3: -As more and more organisms inherit the mutation, the mutation becomes a typical part of the species. The mutation has become an adaptation. An adaptation can be structural, meaning it is a physical part of the organism. An adaptation can also be behavioral, affecting the way an organism acts.
Detailed explanation-4: -Mutation: The change in the genes of individuals living in a population leads to genetic variation. Genetic recombination: The fusion of gametes promotes the various combination of genes in a population leading to genetic variation.