GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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individuals changing to suit their environment
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Individuals learned new traits and pass them on
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sudden change in the environment cause a species change
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small changes pass down through many generations
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Detailed explanation-1: -Evolution is the change in inherited characteristics or traits in a population of organisms over many generations.
Detailed explanation-2: -Analyses of thousands of sequenced genomes show changes in as little as a generation. Many people think evolution requires thousands or millions of years, but biologists know it can happen fast.
Detailed explanation-3: -Evolutionary change that occurs over relatively short periods of time within populations is called microevolution.
Detailed explanation-4: -Noticeable changes usually seem to take 30–40 generations. However, a chromosome mutation and/or hybridisation can cause both a change in form and speciation (not being able to bred with the parent group) in one generation. How many generations are needed for evolution? Evolution is due to mutation and selection.