Biology
11th Edition
ISBN: 9781259188138
Author: Peter H Raven, George B Johnson Professor, Kenneth A. Mason Dr. Ph.D., Jonathan Losos Dr., Susan Singer
Publisher: McGraw-Hill Education
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Chapter 31, Problem 3S
The relationship between flowering plants and pollinators is often used as an example of coevolution. Many flowering plant species have flower structures that are adaptive to a single species of pollinator. Evaluate the benefits and drawbacks of using such a specialized relationship.
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3.
In the tomato, red fruit (O+) is dominant over orange fruit (0), and yellow flowers (W+) are dominant over white
flowers (w). A cross was made between true-breeding plants with red fruit and yellow flowers, and plants with
orange fruit and white flowers. The F₁ plants were then crossed to plants with orange fruit and white flowers, which
produced the following results:
a.
b.
333 red fruit, yellow flowers
64 red fruit, white flowers
58 orange fruit, yellow flowers
350 orange fruit, white flowers
Conduct a chi-square analysis to demonstrate that these two genes DO NOT assort independently. Make sure
to interpret the P value obtained from your chi-square test.
Calculate and provide the map distance (in map units) between the two genes.
Name:
Date:
Investigation: Is a dog more closely related to a coyote or a wolf?
Gray Wolf
Species Name: Canis lupus
Color: Light gray to black
Size: 80-120 pounds, 2.5 feet tall
Appearance: broad snout, round ears, long tail
Coyote
Species Name: Canis latrans
Color: Light gray to brown
Size: 20-50 pounds, 1.5 feet tall
Appearance: narrow snout, pointed ears, long tail
Dog, Alaskan Malamute
Species Name: Canis lupus familiaris
Color: Gray and white or brown and white
Size: 70-80 pounds, 2 feet tall
Appearance: broad snout, round ears, long tail
1. Examine the images and descriptions above.
Underline any similarities between the dog and the wolf.
Place a star
next to any coyote traits that are similar to the dog.
2. Based on appearance alone, which do you think is the most closely related to a dog?
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Chapter 31 Solutions
Biology
Ch. 31 - The lack of seeds is a characteristic of all a....Ch. 31 - Prob. 2UCh. 31 - Which of the following gymnosperms possesses a...Ch. 31 - In a pine tree, the microspores and megaspores are...Ch. 31 - Which of the following terms is NOT associated...Ch. 31 - Which of the following potentially represents the...Ch. 31 - Prob. 7UCh. 31 - Prob. 8UCh. 31 - The pericarp is the a. ovary wall. b. developing...Ch. 31 - Reproduction in angiospenns can occur more quickly...
Ch. 31 - In double fertilization, one sperm produces a...Ch. 31 - Apply your understanding of angiosperms to...Ch. 31 - Comparing stems of two plant specimens under the...Ch. 31 - Prob. 5ACh. 31 - Fruits are complex organs that are specialized for...Ch. 31 - You haw been hired as a research assistant to...Ch. 31 - Assess the benefits and drawbacks of...Ch. 31 - The relationship between flowering plants and...Ch. 31 - Prob. 4S
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