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Variation or mutation occurs within the DNA. It is a natural result of the replication process, or the copying of one DNA strand to make new DNA during reproduction. If the new mutation ends up making some kind of variation that does not kill the organism, then the variation will be passed on to new generations. This is how new traits are formed. When the variation is actually more useful than a trait that the organism's parents had, that new variation will be passed along as a survival trait.
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How do variation occur in asexually reproducing organisms?
mutation of the DNA is the only way asexually reproducing organisms can obtain variations in their population
What are specific examples of variation within a species?
Human species, as in the variation in height.
What is variation among members of the same species called?
Intraspecific variation
What two testable assumptions were the basis for Darwin's hypothesis?
Darwin made bold assumptions about heritable variation, the age of Earth, and relationships among organisms. First, in order for beak size and shape to evolve, there must be enough heritable variation in those traits to provide raw material for natural selection. Second, differences in beak size and shape must produce differences in fitness that cause natural selection to occur.
What are the islands where Charles Darwin observed variation among organisms?
Galapagos Islands are the islands where Charles Darwin observed variation among organisms.
How and why variation occur in rate and sequence of development and learning?
how and why variation occur in the rate and sequence ot develpment and learning
How is variation related to?
The more variation there is in a group of specimens, the more evolution can occur between them.
Why is there variation?
the change that occur from parents in the offspring
How is variation related to evolution?
The more variation there is in a group of specimens, the more evolution can occur between them.
Why must a population have a genetic variation in order for natural selection to occur?
Without variation there is nothing to select from.
Genetic variation is a necessary condition of which process?
Genetic variation is one of the conditions required for Natural Selection to occur.
What is the necessary conditions for evolution to occur?
Variation must exist.
Which of the following is necessary for evolution to occur?
Variation must exist
What requires natural selection to occur in a population?
genetic variation
Which of these is necessary for natural selection to occur genetic engeneering genetic variation asexual reproduction or enviormental stability?
Genetic variation
Most variation found in mitotic phase?
Most variation occur in Ana phase because the chromosomes reach to their poles.
What characteristic within populations cause natural selection to occur?
Genetic variation. If there were no variation in the genes/phenotype then natural selection would have nothing to select from.
