Campbell Biology: Concepts and Connections
10th Edition
ISBN: 9780135269169
Author: Taylor
Publisher: PEARSON
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Chapter 32, Problem 9TYK
Summary Introduction
To determine:
If the apples labeled “organic” depicts anything about the way they are grown and the nutritional value of the apples.
Introduction:
Due to extensive use of the fertilizers and pesticides in farming, the quality of the soil has deteriorated significantly. The fruits and vegetables that are being consumed are ladled with poisonous chemicals that can harm the body in many ways. To curb this practice, organically grown fruits and vegetables are sold that are less harmful for the environment and for human consumption.
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Discussion Questions:
Part One
Why were the plants kept in the dark prior to the experiment? Why is this important?
Why is it important to boil the leaf?
Explain why it was necessary to use boiling alcohol?
What is the purpose of the iodine?
Part Two
What was the purpose of keeping the leaf in the dark and then covering it with a cardboard cut-out?
What conclusions can you draw from this part of the lab?
Part Three
7. In this experiment what was the purpose of adding the soda lime?
8. Why was a sealed bag placed around each plant?
9. What happened in the control plants?
10. What was the result on photosynthesis?
Part Four
11. Why was a variegated leaf used in this experiment?
!2. What conclusions can you draw about starch production in a variegated leaf?
How did the color differences between the two bacterial species you used in this experiment help you determine if the streak plate method you performed was successful?
series of two-point crosses were carried out among six loci (a, b, c, d, e and f), producing the following recombination frequencies. According to the data below, the genes can be placed into how many different linkage groups?
Loci
a and b
Percent Recombination
50
a and c
14
a and d
10
a and e
50
a and f
50
b and c
50
b and d
50
b and e
35
b and f
20
c and d
5
c and e
50
c and f
50
d and e
50
d and f
50
18
e and f
Selected Answer:
n6
Draw genetic maps for the linkage groups for the data in question #5. Please use the format given below to indicate the genetic distances.
Z
e.g. Linkage group 1=P____5 mu__Q____12 mu
R
38 mu
5 Linkage group 2-X_____3 mu__Y_4 mu
sanight
Chapter 32 Solutions
Campbell Biology: Concepts and Connections
Ch. 32 - Fill in the blanks in this concept map to help you...Ch. 32 - Prob. 2TYKCh. 32 - Prob. 3TYKCh. 32 - By trapping insects, carnivorous plants obtain...Ch. 32 - Prob. 5TYKCh. 32 - Prob. 6TYKCh. 32 - Prob. 7TYKCh. 32 - Prob. 8TYKCh. 32 - Prob. 9TYKCh. 32 - Acid rain contains an excess of hydrogen ions...
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