AP BIOLOGY

EVOLUTION

EVIDENCE FOR EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Darwin’s comparison of DNA sequences provided strong evidence of evolution
A
true
B
false
Explanation: 

Detailed explanation-1: -Darwin could compare only the anatomy and embryos of living things. Today, scientists can compare their DNA. Similar DNA sequences are the strongest evidence for evolution from a common ancestor.

Detailed explanation-2: -Thus, DNA evidence confirms Darwin’s central hypothesis: that heritable variation arises continually and is gradually accumulated, making lineages steadily diverge from each other (though not necessarily at a constant rate).

Detailed explanation-3: -DNA and the genetic code reflect the shared ancestry of life. DNA comparisons can show how related species are. Biogeography. The global distribution of organisms and the unique features of island species reflect evolution and geological change.

Detailed explanation-4: -Perhaps the most persuasive fossil evidence for evolution is the consistency of the sequence of fossils from early to recent. Nowhere on Earth do we find, for example, mammals in Devonian (the age of fishes) strata, or human fossils coexisting with dinosaur remains.

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