Human Biology Lab
15th Edition
ISBN: 9781308566672
Author: McGraw-Hill Education
Publisher: Mcgraw-Hill
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Chapter 7.2, Problem 1LO
Summary Introduction
To enlist:
The examples of body’s innate defenses.
Introduction:
Immune system of the human body is divided into two main branches namely the innate immunity and the adaptive immunity. Innate or the body’s first defense mechanism is present since birth and this defense mechanism is non-specific, which means it acts as a barrier in for every foreign body irrespective of its structure. Adaptive immunity of the body comes in later stages, when the body is introduced to pathogens. It is a specific type of defense mechanism.
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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.
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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 7 Solutions
Human Biology Lab
Ch. 7.1 - Prob. 1LOCh. 7.1 - Prob. 2LOCh. 7.1 - Prob. 3LOCh. 7.2 - Prob. 1LOCh. 7.2 - Prob. 2LOCh. 7.2 - Prob. 3LOCh. 7.3 - Explain the role of an antigen in the adaptive...Ch. 7.3 - Prob. 2LOCh. 7.3 - Summarize the process of celI-mediated immunity...Ch. 7.4 - Prob. 1LO
Ch. 7.4 - Prob. 2LOCh. 7.4 - Prob. 1BTHCh. 7.4 - Prob. 2BTHCh. 7.5 - Prob. 1LOCh. 7.5 - Prob. 2LOCh. 7 - Prob. 1ACh. 7 - Prob. 2ACh. 7 - Prob. 3ACh. 7 - Prob. 4ACh. 7 - Prob. 5ACh. 7 - Prob. 6ACh. 7 - Prob. 7ACh. 7 - Prob. 8ACh. 7 - Prob. 9ACh. 7 - Prob. 10ACh. 7 - Prob. 11ACh. 7 - Prob. 12ACh. 7 - Prob. 13ACh. 7 - Prob. 14ACh. 7 - Prob. 1TCCh. 7 - Prob. 2TCCh. 7 - Prob. 3TCCh. 7 - Prob. 4TCCh. 7 - Prob. 5TC
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