AP BIOLOGY

EVOLUTION

PATTERNS OF EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Large, irreversible changes in gene frequencies
A
Evolution
B
Microevolution
C
Macroevolution
D
Mutation
Explanation: 

Detailed explanation-1: -Macroevolution is genetic change that occurs over long time scales, resulting in large changes in heritable traits in a population; changes large enough that we consider this population a unique taxonomic group, or species. Macroevolution is sometimes also termed speciation (the process by which a new species arises).

Detailed explanation-2: -An example of macroevolution is the evolution of a new species. One mechanism that drives evolution is natural selection, which is a process that increases the frequency of advantageous alleles in a population.

Detailed explanation-3: -The basic evolutionary mechanisms-mutation, migration, genetic drift, and natural selection-can produce major evolutionary change if given enough time.

Detailed explanation-4: -In other words, mutation, migration, genetic drift, and natural selection can produce major evolutionary changes given enough time.

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