CAMPBELL BIOLOGY IN FOCUS (LL)-W/MOD.MA
3rd Edition
ISBN: 9780135686065
Author: Urry
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
- A. humans and chimpanzees Share a relatively recent common ancestor.
- B. humans evolved from chimpanzees
- C. chimpanzees evolved from humans
- D. convergent evolution led to the DNA similarities.
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Fossilized remains of prehistoric mastodons show anatomical similarities to modern-day elephants. These similarities provided the first evidence that mastodons were related to modern-day elephants. Which of the following is the BEST additional evidence that mastodons were related to elephants?
A.
Mastodons walked on four legs like modern-day elephants.
B.
Mastodon tissues contained proteins with similar amino acid sequences compared to modern-day elephants.
C.
Mastodon fossils were found in the same area where modern-day elephants live.
D.
Mastodons ate a diet similar to that of modern-day elephants.
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
According to "Our Earliest Ancestors", why can’t scientists just do DNA analysis on these fossil hominins to determine if they are a separate species and possibly what species they belong to?
A.The fossils would need to be in a -5 degree Celsius environment to prevent DNA from degrading
B.The DNA of fossil hominins is too similar to modern humans, making it difficult to distinguish between them.
C.Scientists can't perform DNA analysis on fossil hominins because the fossils have been contaminated with modern human DNA over the years, making it impossible to isolate the ancient genetic material.
D.The technology for extracting DNA from fossils hasn't been developed yet
Chapter 19 Solutions
CAMPBELL BIOLOGY IN FOCUS (LL)-W/MOD.MA
Ch. 19.1 - How did Huttons and Lyells ideas influence Darwins...Ch. 19.1 - MAKE CONNECTIONS Scientific hypotheses must be...Ch. 19.2 - How does the concept of descent with modification...Ch. 19.2 - Prob. 2CCCh. 19.2 - MAKE CONNECTIONS Review the relationship between...Ch. 19.3 - Explain how the following statement is inaccurate:...Ch. 19.3 - How does evolution account for (a) the similar...Ch. 19.3 - WHAT IF? Fossils show that dinosaurs originated...Ch. 19 - Which of the following is not an observation or...Ch. 19 - Which of the following observations helped Darwin...
Ch. 19 - Prob. 3TYUCh. 19 - The upper forelimbs of humans and bats have fairly...Ch. 19 - DNA sequences In many human genes are very similar...Ch. 19 - SCIENTIFIC INQUIRY DRAW IT Mosquitoes resistant to...Ch. 19 - FOCUS ON EVOLUTION Explain why anatomical and...Ch. 19 - FOCUS ON INTERACTIONS Write a short essay (about...Ch. 19 - SYNTHESIZE YOUR KNOWLEDGE This honeypot ant (genus...
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