In species, ______ can provide an advantage for survival or can contribute only in genetic sequence.
Variation
Variation refers to the differences in the genetic makeup or observable traits between individuals of the same species.
Variations arise from mutations, recombination during sexual reproduction and environmental influences; a favourable variation can give an individual a better chance of survival in a changing environment (natural selection), while a neutral variation may simply add to the gene pool.
Pollination and fertilisation are stages of reproduction but do not by themselves confer a survival advantage, and speciation is the outcome of accumulated variations, not the variations themselves.
Hence, the correct answer is variation.
Similar Questions
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Important Questions from Genetics and Evolution
Which one of the following is a nonsense codon in universal code?
Which one of the following is an example of Analogous organs?
Which base of a codon is called wobble base?
How many different kinds of gametes will be produced by a plant having the genotype AABbCC?
Pair of genes that occupy a specific location on a particular chromosome and control the same trait is termed as _________.
