EVOLUTION
MODERN THEORY OF EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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if species have changed over time, their genes should have changed
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closely related species will show similarities in nucleotide sequences
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if species share a common ancestor, they will share all of the characteristics of that ancestor
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closely related species will show similarities in amino acid sequences
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Detailed explanation-1: -Evolutionary theory predicts that peripheral populations in a species’ range are likely to contain lower genetic diversity and higher genetic differentiation due to greater distance and smaller effective population size relative to more central populations (Eckert et al., 2008; Wulff, 1950).
Detailed explanation-2: -Universal common ancestry (UCA) is a central pillar of modern evolutionary theory. As first suggested by Darwin, the theory of UCA posits that all extant terrestrial organisms share a common genetic heritage, each being the genealogical descendant of a single species from the distant past.
Detailed explanation-3: -There are four principles at work in evolution-variation, inheritance, selection and time. These are considered the components of the evolutionary mechanism of natural selection.