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Biological Science (6th Edition)
6th Edition
ISBN: 9780321976499
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Emily Taylor, Greg Podgorski, Jeff Carmichael
Publisher: PEARSON
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Textbook Question
Chapter 23, Problem 3TYK
CAUTION Why is genetic drift aptly named?
a. It causes allele frequencies to drift up or down randomly.
b. It occurs when alleles from one population drift into another.
c. It occurs when mutations drift into a genome.
d. It occurs when populations drift into new habitats.
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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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(dominant gene symbol is F and mutant is f).
A. Using the rate of incidence above, what is the frequency of carriers of the
cystic fibrosis allele for CFTR in the US? (3 pts)
B. In a clinical study, 400 people from the population mentioned in (A.) were
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Chapter 23 Solutions
Biological Science (6th Edition)
Ch. 23 - PROCESS OF SCIENCE In what sense is the...Ch. 23 - 2. Why isn’t inbreeding considered an evolutionary...Ch. 23 - 3. CAUTION Why is genetic drift aptly named?
a. It...Ch. 23 - 4. True or false? Gene flow can either increase or...Ch. 23 - 5. QUANTITATIVE In a population of 2500, how many...Ch. 23 - 6. In the 1700s and 1800s, royalty in Europe often...Ch. 23 - 7. CAUTION Determine what is incorrect in the...Ch. 23 - MODEL Draw a small concept map (BioSkllls 12 )...Ch. 23 - 9. QUANTITATIVE In humans, albinism is caused by...Ch. 23 - Prob. 10TYPSS
Ch. 23 - Are toucans important to tropical forests? Human...Ch. 23 - QUANTITATIVE Toucans can eat fruits with large...Ch. 23 - 13. Do these data illustrate directional,...Ch. 23 - 14. Large seeds carry more resources than small...Ch. 23 - 15. PROCESS OF SCIENCE The data in the graphs are...Ch. 23 - 16. SOCIETY If you were a journalist covering this...
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