Which selection is human-driven?

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Prepare for your College Biology Exam 1 with flashcards and multiple choice questions. Test your understanding with detailed explanations and hints to ensure success in your biology exam!

Multiple Choice

Which selection is human-driven?

Explanation:
Artificial selection is human-driven. Humans decide which individuals reproduce by selecting traits they value, guiding the genetic makeup of future generations. This is why we see dramatic changes in domesticated animals and crops: breeders actively choose for features like size, temperament, or yield and let those individuals pass on their genes. In contrast, natural selection depends on environmental pressures and happens without human intent, sexual selection favors traits that help in attracting mates rather than overall survival, and genetic drift is random fluctuation in trait frequencies due to chance. The hallmark of human influence on evolution in populations is artificial selection.

Artificial selection is human-driven. Humans decide which individuals reproduce by selecting traits they value, guiding the genetic makeup of future generations. This is why we see dramatic changes in domesticated animals and crops: breeders actively choose for features like size, temperament, or yield and let those individuals pass on their genes. In contrast, natural selection depends on environmental pressures and happens without human intent, sexual selection favors traits that help in attracting mates rather than overall survival, and genetic drift is random fluctuation in trait frequencies due to chance. The hallmark of human influence on evolution in populations is artificial selection.

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