The human tooth has a natural protective mechanism. This mechanism may act against bacterial colonization that complements the defensive role of saliva. The hard enamel part of the tooth selectively absorb acidic glycoproteins from saliva and it is referred to as mucins. This results in the formation of a membranous layer known as the acquired enamel pellicle, which confers a net negative charge. Most bacteria possess a net negative charge, thus there will be repulsion between the tooth surface and the bacteria. Dental plaque is formed when the natural protective mechanism fails.

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Definition Definition Chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that vary in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes.

Chapter 39.6, Problem 2MI

Summary Introduction

The human tooth has a natural protective mechanism. This mechanism may act against bacterial colonization that complements the defensive role of saliva. The hard enamel part of the tooth selectively absorb acidic glycoproteins from saliva and it is referred to as mucins. This results in the formation of a membranous layer known as the acquired enamel pellicle, which confers a net negative charge. Most bacteria possess a net negative charge, thus there will be repulsion between the tooth surface and the bacteria. Dental plaque is formed when the natural protective mechanism fails.

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Linuron, a derivative of urea, is used as an herbicide. Linuron serum levels were measured in 4Kg rabbits following a bolus IV injection of 10mg/kg. Time (minutes) Serum Linuron Levels (ug/ml) following IV dose 10 15.48 20 8.60 30 5.90 45 3.78 60 2.42 90 1.49 120 0.93 180 0.60 240 0.41 300 0.29 360 0.22 Analyze this data and perform the necessary calculations to determine the following pharmacokinetic parameters from the IV data: (5 points per parameter, 24 parameters/variables ■ 120 points possible). You do NOT need to submit graphs or data tables. Give the terminal regression line equation and R or R² value: Give the x axis (name and units, if any) of the terminal line: Give the y axis (name and units, if any) of the terminal line: Give the residual regression line equation and R or R² value: Give the x axis (name and units, if any) of the residual line: Give the y axis (name and units, if any) of the residual line:

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? www.biologycorner.com

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Definition Definition Chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that vary in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes.

Chapter 39.6, Problem 2MI

Summary Introduction

The human tooth has a natural protective mechanism. This mechanism may act against bacterial colonization that complements the defensive role of saliva. The hard enamel part of the tooth selectively absorb acidic glycoproteins from saliva and it is referred to as mucins. This results in the formation of a membranous layer known as the acquired enamel pellicle, which confers a net negative charge. Most bacteria possess a net negative charge, thus there will be repulsion between the tooth surface and the bacteria. Dental plaque is formed when the natural protective mechanism fails.

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Answer 3

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Definition Definition Chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that vary in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes.

Chapter 39.6, Problem 2MI

Summary Introduction

The human tooth has a natural protective mechanism. This mechanism may act against bacterial colonization that complements the defensive role of saliva. The hard enamel part of the tooth selectively absorb acidic glycoproteins from saliva and it is referred to as mucins. This results in the formation of a membranous layer known as the acquired enamel pellicle, which confers a net negative charge. Most bacteria possess a net negative charge, thus there will be repulsion between the tooth surface and the bacteria. Dental plaque is formed when the natural protective mechanism fails.

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Answer 4

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Definition Definition Chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that vary in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes.

Chapter 39.6, Problem 2MI

Summary Introduction