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 38, Problem 1S
Summary Introduction
To explain:
The short term and long term consequences of fumigation on the soils, which is done to kill harmful
Introduction:
In farming, the crops are prevented from developing the diseases by spraying various kinds of antimicrobial products. These antimicrobials kill bacteria, fungi and other animals which causes harm to the crops.
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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 38 Solutions
Biology
Ch. 38 - Which of the following is NOT found in topsoil? a....Ch. 38 - Prob. 2UCh. 38 - What proportion of the soil volume is occupied by...Ch. 38 - Which of the following is a micronutrient? a....Ch. 38 - Prob. 5UCh. 38 - Prob. 6UCh. 38 - a C4 plant, the Calvin cycle occurs in a. the...Ch. 38 - One potential problem with using poplars to remove...Ch. 38 - Prob. 1ACh. 38 - If you wanted to conduct an experiment to...
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