The important events in the course of an HIV infection in the absence of treatment. Concept introduction: HIV (Human Immuno Virus) is a virus that can residue in the human cells without expressing its effect. It belongs to the retroviruses family and contains single-stranded RNA. HIV enzyme “reverse transcriptase” transcribes its viral genetic material, RNA into DNA so that it can actively incorporate itself into the genetic material (DNA) of the host. Acquired immunodeficiency syndrome is a condition in which antibodies for HIV are present in conjugation with certain opportunistic infections. The patients with AIDS will suffer from sudden decreases in the number of CD 4 cells that causes diseases in the nervous system, skin, digestive system and dementia during final stages.

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Definition Definition Organ system that helps in the digestion of food by mechanical and biochemical processes. The digestive system breaks down food into simpler components that enable the body to then absorb or transport nutrients. The human digestive system includes the gastrointestinal tract or alimentary canal and the associate glands. The organs of the gastrointestinal tract include the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. The associated glands include salivary glands, liver, gallbladder, and pancreas.

Chapter 20.3, Problem 11AYP

Summary Introduction

To describe:

The important events in the course of an HIV infection in the absence of treatment.

Concept introduction:

HIV (Human Immuno Virus) is a virus that can residue in the human cells without expressing its effect. It belongs to the retroviruses family and contains single-stranded RNA. HIV enzyme “reverse transcriptase” transcribes its viral genetic material, RNA into DNA so that it can actively incorporate itself into the genetic material (DNA) of the host. Acquired immunodeficiency syndrome is a condition in which antibodies for HIV are present in conjugation with certain opportunistic infections. The patients with AIDS will suffer from sudden decreases in the number of CD4 cells that causes diseases in the nervous system, skin, digestive system and dementia during final stages.

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19. On the diagram below a. Label the three pictures as: DNA; polypeptide; or RNA. b. Label the arrows as: translation or transcription/RNA processing. c. Add the following details to the diagram. Promoter region TATA box Transcription start site Transcription terminator Intron (A,B,C,D) Exons (1,2,3,4,5) Splice sites 5' cap 5' UTR (untranslated region) 3' poly A tail 3' UTR (untranslated region) Translational start (AUG) Translational stop (UGA, UAG, or UAA) N and C ends of polypeptide 0000

Match the letter labels in the figure below to the terms. Some letter labels are not used. MNNNNNNIN M C B A M D F E H K G 8

The diagram below illustrates a quorum sensing pathway from Staphylococcus aureus. Please answer the following questions. 1. Autoinduction is part of the quorum sensing system. Which promoter (P2 or P3) is critical for autoinduction? 2)This staphylococcus aureus grows on human wounds, causing severe infections. You would like to start a clinical trial to treat these wound infections. Please describe: a) What molecule do you recommend for the trial. Why? b) Your trial requires that Staphylococcus aureus be isolated from the wound and submitted to genome sequencing before admittance. Why? What are you testing for? 3) If a mutation arises where the Promoter P3 is constitutively active, how would that influence sensitivity to AIP? Please explain your rationale. 4) This pathway is sensitive to bacterial cell density. Describe two separate mutation that would render the pathway active independent of cell density. Briefly explain your rationale. Mutation 1 Mutation 2

Answer 2

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Definition Definition Organ system that helps in the digestion of food by mechanical and biochemical processes. The digestive system breaks down food into simpler components that enable the body to then absorb or transport nutrients. The human digestive system includes the gastrointestinal tract or alimentary canal and the associate glands. The organs of the gastrointestinal tract include the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. The associated glands include salivary glands, liver, gallbladder, and pancreas.

Chapter 20.3, Problem 11AYP

Summary Introduction

To describe:

The important events in the course of an HIV infection in the absence of treatment.

Concept introduction:

HIV (Human Immuno Virus) is a virus that can residue in the human cells without expressing its effect. It belongs to the retroviruses family and contains single-stranded RNA. HIV enzyme “reverse transcriptase” transcribes its viral genetic material, RNA into DNA so that it can actively incorporate itself into the genetic material (DNA) of the host. Acquired immunodeficiency syndrome is a condition in which antibodies for HIV are present in conjugation with certain opportunistic infections. The patients with AIDS will suffer from sudden decreases in the number of CD4 cells that causes diseases in the nervous system, skin, digestive system and dementia during final stages.

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Answer 3

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Definition Definition Organ system that helps in the digestion of food by mechanical and biochemical processes. The digestive system breaks down food into simpler components that enable the body to then absorb or transport nutrients. The human digestive system includes the gastrointestinal tract or alimentary canal and the associate glands. The organs of the gastrointestinal tract include the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. The associated glands include salivary glands, liver, gallbladder, and pancreas.

Chapter 20.3, Problem 11AYP

Summary Introduction

To describe:

The important events in the course of an HIV infection in the absence of treatment.

Concept introduction:

HIV (Human Immuno Virus) is a virus that can residue in the human cells without expressing its effect. It belongs to the retroviruses family and contains single-stranded RNA. HIV enzyme “reverse transcriptase” transcribes its viral genetic material, RNA into DNA so that it can actively incorporate itself into the genetic material (DNA) of the host. Acquired immunodeficiency syndrome is a condition in which antibodies for HIV are present in conjugation with certain opportunistic infections. The patients with AIDS will suffer from sudden decreases in the number of CD4 cells that causes diseases in the nervous system, skin, digestive system and dementia during final stages.

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Answer 4

Question

Definition Definition Organ system that helps in the digestion of food by mechanical and biochemical processes. The digestive system breaks down food into simpler components that enable the body to then absorb or transport nutrients. The human digestive system includes the gastrointestinal tract or alimentary canal and the associate glands. The organs of the gastrointestinal tract include the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. The associated glands include salivary glands, liver, gallbladder, and pancreas.

Chapter 20.3, Problem 11AYP

Summary Introduction