Campbell Biology in Focus
Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Chapter 19, Problem 5TYU

DNA sequences In many human genes are very similar to the sequences of corresponding genes In chimpanzees. The most likely explanation for this result Is that

  1. A.    humans and chimpanzees Share a relatively recent common ancestor.
  2. B.     humans evolved from chimpanzees
  3. C.     chimpanzees evolved from humans
  4. D.    convergent evolution led to the DNA similarities.
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According to " Denisovans: Decoding the Secrets of Our Mysterious Ancient Cousins”, where in the world are the highest concentrations of Denisovan DNA in modern, living humans?    A.Australia, the South Pacific, Indonesia, Malaysia B.Europe C.North America D.Africa and the Middle East
Modern dogs are direct descendants of the gray wolf. They first appeared about 130,000 years ago. Today, there are about 150 different breeds of domestic dog, a few of which are shown below. 1. Gray wolf All modern domestic dogs are descendants of the gray wolf. adapted from: www. pba.org The great variety of modern dogs can best be explained by A. selective breeding of dogs over many years B. the cloning of domestic dogs C. genetic alterations in gray wolves alive today D. natural selection favoring wolves over dogs
Denisovans are ancient humans. What would you least expect?   A. They would have a larger brain than H. floresiensis.   B. Fusion of chromosome 2a and 2b would not have occurred.   C. Their mtDNA would show more similarity to Neanderthals than to H. sapiens.   D. They probably did not have a spoken language.   E. There would be evidence of them interbreeding with Homo sapiens and Neanderthals.
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