EVOLUTION
PATTERNS OF EVOLUTION
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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variations within a species
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extinction of the species
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asexual reproduction
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no change in the genes of an organism
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Detailed explanation-1: -Genetic Variation is Essential for Evolution by Natural Selection. For natural selection to occur, a population must have a wide variety of individuals with different traits.
Detailed explanation-2: -These rates vary among both genes and lineages due to gene effects (such as nucleotide composition, among-site variation, etc.), lineage effects (generation time, metabolic rates, etc.), and interactions between the two.
Detailed explanation-3: -Different genes often have different evolutionary rates. Even in a single gene, the evolutionary process is heterogeneous among sites. Rates also vary among lineages.
Detailed explanation-4: -Genetic variation is the presence of differences in sequences of genes between individual organisms of a species. It enables natural selection, one of the primary forces driving the evolution of life.