Which of the following enzymes is needed to synthesize the DNA molecule from the viral RNA genome;

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Which of the following enzymes is needed to synthesize the DNA molecule from the viral RNA genome;

Question 1 (4 points)
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Which of the following enzymes is needed to synthesize the DNA molecule from the viral RNA genome;

Question 1 options:

DNA polymerase

RNA polymerase

Reverse transcriptase

Replicase

Question 2 (4 points)
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Viruses that persist in the cell and cause recurrent disease are considered;

Question 2 options:

Oncogenic

Cytopathic

Latent

Resistant

Question 3 (4 points)
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The capsid is composed of protein subunits called;

Question 3 options:

Spikes

Protomers

Virions

Capsomers

Question 4 (4 points)
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The envelope of an animal virus is derived from the ………………. Of its host cell

Question 4 options:

Cell wall

Cell membrane

Glycocalyx

Receptors

Question 5 (4 points)
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The nucleic acid of a virus is;

Question 5 options:

DNA only

RNA only

Both DNA and RNA

Either DNA or RNA

Question 6 (4 points)
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Enveloped viruses carry surface receptors that act as recognition sites for subsequent binding and infection of other cells, these surface receptors are called;

Question 6 options:

Buds

Spikes

Fibers

Sheath

Question 7 (4 points)
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Example of virus that alters the genetic set of a host cell and transforms it to cancer cell is;

Question 7 options:

Herpes Simplex Virus

HIV

Papillomavirus

Flu virus

Question 8 (4 points)
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Spikes on enveloped viral surfaces helps in;

Question 8 options:

Replication

Entry

Integration into host genome

Assembly of viral particles

Question 9 (4 points)
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Endotoxins are found in which of the following organisms;

Question 9 options:

G + bacteria

G – bacteria

Both G + and G – bacteria

Some fungi

Question 10 (4 points)
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Formation of biofilms is mediated by which part of the cell;

Question 10 options:

Flagella

Pili

Fimbriae

Glycocalyx

Question 11 (4 points)
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Bacterial endospores function in

Question 11 options:

reproduction

protein synthesis

survival

storage

Question 12 (4 points)
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Clostridium botulinum is a virus that causes neurotoxic effects (paralysis) in infected individuals.

Question 12 options:TrueFalse

Question 13 (4 points)
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Viroids are short pieces of RNA with no protein coat found to infect only plants.

Question 13 options:TrueFalse

Question 14 (4 points)
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Gram positive bacteria is characterized by a thin layer of peptidoglycan on its outer membrane

Question 14 options:TrueFalse

Question 15 (4 points)
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A plasmid is a critical piece of DNA necessary for bacterial life.

Question 15 options:TrueFalse

Question 16 (4 points)
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Undifferentiated lymphocytes exist in;

Question 16 options:

Thymus gland

Bone marrow

Lymph nodes

The liver

Question 17 (4 points)
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Lymphocytes differentiate to T and B lymphocytes at

Question 17 options:

Trachea and Brain

Tonsils and blood

Thymus and Bone marrow

Liver and heart

Question 18 (4 points)
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What type of immune cell first detects and processes antigens and foreign molecules;

Question 18 options:

Antigen presenting cells (APCs)

T lymphocytes

B lymphocytes

None of the above

Question 19 (4 points)
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A molecule that does not initiate an immune response known as

Question 19 options:

Immune misleader

Epitope

Immunoglobulin

Hapten

Question 20 (4 points)
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A molecule that initiates an immune response with an active site for immune cell recognition is known as

Question 20 options:

Immune misleader

Epitope

Immunoglobulin

Hapten

Question 21 (4 points)
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Which of the following immunoglobulin classes is able to cross the placenta

Question 21 options:

IgG

IgA

IgM

IgE

Question 22 (4 points)
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Which of the following immunoglobulin classes is secreted at mucus membranes (salivary glands, intestine, nasal membrane, genitourinary tract…etc)

Question 22 options:

IgG

IgA

IgE

IgM

Question 23 (4 points)
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Which of the following immunoglobulin classes is associated with basophiles and mast cells in blood and mediates allergic reactions

Question 23 options:

IgG

IgA

IgE

IgD

Question 24 (4 points)
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Immunoglobulins are produced by which of the following cells;

Question 24 options:

T lymphocytes

B lymphocytes

Antigen presenting cells

Neutrophils

Question 25 (4 points)
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Which of the following is an example of innate immune system;

Question 25 options:

B lymphocytes

White blood cells

Skin, Saliva, Tears, and stomach acid

The spleen

Explain how the lifecycle of the Red Knot depends on hatchlings emerging at the same time as the insects hatch. (b) What are the long-term ramifications of having a mismatch between the bird hatch and the insect hatch?

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Explain how the lifecycle of the Red Knot depends on hatchlings emerging at the same time as the insects hatch.
(b) What are the long-term ramifications of having a mismatch between the bird hatch and the insect hatch?

“Keystone Species, Shrinking Red Knots, and Biomes”

For your primary post, please respond to one of the following three topics with a post of at least 125 words that addresses each point given in the instructions. Also, please reply to at least one fellow student on any topic.

Topic 1 : Keystone Species. Watch the video entitled “Some animals are more equal than others…” (1)* Then completely describe the concept of a keystone species, giving specific examples from the video.

Topic 2 [articles]: Shrinking Red Knots.Read two of the following three articles about shrinking Red Knots (2)*, (3)*, (4)*, or research additional information on your own. Then, address the following issues:

(a) Explain how the lifecycle of the Red Knot depends on hatchlings emerging at the same time as the insects hatch.
(b) What are the long-term ramifications of having a mismatch between the bird hatch and the insect hatch?
(c) Of the two articles you read, which of them do you feel was most informative? Why?
Topic 3 [research]: Biomes. The term “biome” is described in the textbook. For this topic, describe the biome where you grew up (or where you currently live). Identify your location, the biome of the region, and describe the major characteristics of that biome. Add enough detail and commentary from your own experience, so that your answer is 125 words or more. If you’re really ambitious, you could consider looking up the EPA “ecoregion,” which will give additional details about your region.

What is the function of fat in nutritional health besides serving as the body’s primary means of storage for excess calories?

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What is the function of fat in nutritional health besides serving as the body’s primary means of storage for excess calories?

What is the function of fat in nutritional health besides serving as the body’s primary means of storage for excess calories? What is the basis of our current concern about saturated fats, cholesterol, and trans-fatty acids? (150-200 words)

What would be obvious symptoms if someone had a stroke in a particular lobe?

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Week 2 Chapter 3 Nervous System

Please choose ONE of the following prompts to respond to. You may respond to other students who answered a different prompt than you:

Option A: What would be obvious symptoms if someone had a stroke in a particular lobe?

Option B: Discuss the pros and cons of psychosurgery with patients who might be violent, antisocial, or capable of criminal acts.

First, you will watch President Ronald Reagan’s Challenger speech. As you watch his address, how does it follow the characteristics (listed in question 2) described in your textbook? What specific strategies does he use that sets it apart from other speeches of special occasion?

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For this discussion board assignment, you will be tasked with watching two very famous special occasion speeches.

1. First, you will watch President Ronald Reagan’s Challenger speech. As you watch his address, how does it follow the characteristics (listed in question 2) described in your textbook? What specific strategies does he use that sets it apart from other speeches of special occasion?

2. Second, you will watch Jimmy Valvano’s famous 1993 speech. How does this speech differ in tone from that of Reagan’s speech? How are the speeches different in their language? In their tone? In the audience for whom they were written?

Please discuss anything else you find interesting in comparing and contrasting these very different but famous examples of special occasion speaking.

The minimum length for this assignment is 1,200 words. Be sure to check your Turnitin report for your post and to make corrections before the deadline of 11:59 pm Mountain Time of the due date to avoid lack of originality problems in your work.

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Darwin’s Theory
The minimum length for this assignment is 1,200 words. Be sure to check your Turnitin report for your post and to make corrections before the deadline of 11:59 pm Mountain Time of the due date to avoid lack of originality problems in your work.

Darwin was not the first to consider evolution as a process but he did come up with the first effective explanation for how it happens. Describe Darwin’s theory of evolution by natural selection. Explain how this theory was a major advance over prior ideas as to how organisms changed over time. Give evidence in support of evolution and describe the driving forces for evolutionary change.