Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 29, Problem 9TYK
Summary Introduction
Introduction:
Genome sequencing is presumably the procedure of establishing the complete sequence of the genetic material of an organism at any single time. It entails the sequencing of genetic material of an organism, either plant or animal.
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Which of the following observations would provide the strongest evidence that two plants belong to
different biological species?
a.The leaves and flowers show morphological differences.
b.There are variations in their RNA sequences.
c.They produce viable but sterile offspring.
d.They occupy unique habitats in an ecosystem.
A. What is the wild progenitor of maize and where is it found?
B. George Beadle concluded that this plant was the likely ancestor of maize (corn) even though the two plants appear very different. What evidence did Dr. Beadle collect that led to his conclusion?
C. How long ago was maize domesticated and what evidence was utilized to determine this?
D. Dr. Doebley and his team compared the DNA sequence of maize to that of a number of teosinte varieties from throughout Mexico. What did their analysis reveal?
Clausen and colleagues proposed two hypotheses to explain this variation within a species: (1) There are genetic differences between populations of plants found at different elevations. (2) The species has developmental flexibility and can assume tall or short growth forms, depending on local abiotic factors. If you had seeds from yarrow plants found at low and high elevations, what experiments would you perform to test these hypotheses?
Select the three experiments.
Chapter 29 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 29.1 - What major reproductive adaptations facilitated...Ch. 29.1 - How did seeds, pollen, and pollination affect the...Ch. 29.2 - Why are gymnosperms called naked seed plants?Ch. 29.2 - Prob. 2SBCh. 29.2 - Summarize the steps of the pine life cycle.Ch. 29.3 - Prob. 1SBCh. 29.3 - Prob. 2SBCh. 29.4 - Prob. 1SBCh. 29.4 - Prob. 2SBCh. 29.5 - Name four major ways human societies rely on seed...
Ch. 29.5 - Prob. 2SBCh. 29 - Prob. 1TYKCh. 29 - Prob. 2TYKCh. 29 - Prob. 3TYKCh. 29 - Prob. 4TYKCh. 29 - Prob. 5TYKCh. 29 - Prob. 6TYKCh. 29 - Prob. 7TYKCh. 29 - Prob. 8TYKCh. 29 - Prob. 9TYKCh. 29 - Adaptations that correlate with the adaptive...Ch. 29 - Prob. 11TYKCh. 29 - Discuss Concepts Modern humans emerged about...Ch. 29 - Discuss Concepts Compare the size, anatomical...Ch. 29 - Prob. 14TYKCh. 29 - Discuss Concepts Working in the field, you...Ch. 29 - Prob. 16TYKCh. 29 - Prob. 1ITDCh. 29 - Prob. 2ITD
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- Clausen and colleagues proposed two hypotheses to explainthis variation within a species: (1) There are genetic differencesbetween populations of plants found at different elevations.(2) The species has developmental flexibility and can assumetall or short growth forms, depending on local abiotic factors.If you had seeds from yarrow plants found at low and highelevations, how would you test these hypotheses?arrow_forwardThe method of phylogenetic contrasts was necessary to test for the association between branch retention (a feature that enhances flammability) and serotiny (the ability to regenerate after a fire) among pine trees. This association is based on the notion that selection will tend to favor - A. branch retention in flame-enhancing tree species. B. serotiny among fire resistant tree species. C. serotiny among flame-enhancing tree species. D. branch retention in fire-resistant species.arrow_forwardOne problem with this line of criticism is that it is difficult to distinguish good forms of manipulating nature from unacceptable ones. Some critics of GMOs argue that we ought to leave species as we find them, and that it is the cross-species transfers of genetic material involved in some GMOs that make them unacceptable. One problem with this objection is that similar transfers have occurred in nature—from basic plant genetics to the long-term patterns of evolution. Please explain what does it meanarrow_forward
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