Questions
Compare and contrast the Instructional Theory and Clonal Selection Theory explaining specificity of the immune response.

Compare and contrast the Instructional Theory and Clonal Selection Theory explaining specificity of the immune response.

In: Biology

Write down all the food items you consume in one complete day. Assemble information from food...

Write down all the food items you consume in one complete day. Assemble information from food labels, menus, and dietary tables to calculate the number of grams of proteins, carbohydrates, and fats consumed. Calculate the number of Calories in each food type using 4 Cal/g for proteins and carbohydrates and 9 Cal/g for fats. Then obtain information about recommended dietary requirements for persons of your sex, age, weight, height, and level of activity from health or biology teachers or the Internet.

In: Biology

In studying a particular bio-molecule (a protein, nucleic acid, carbohydrate, or lipid) in the laboratory, the...

In studying a particular bio-molecule (a protein, nucleic acid, carbohydrate, or lipid) in the laboratory, the biochemist first needs to separate it from other biomolecules in the sample—that is, to purify it. Specific puri-fication techniques are described later in the book. However, by looking at the monomeric subunits of a biomolecule, you should have some ideas about the characteristics of the mole-cule that would allow you to separate it from other molecules. For example, how would you separate (a) amino acids from fatty acids and (b) nucleotides from glucose?

In: Biology

An example of ongoing natural selection that dramatically affects humans is the evolution of drug-resistant strains...

An example of ongoing natural selection that dramatically affects humans is the evolution of drug-resistant strains of pathogenic bacteria that can proliferate very quickly. With that in mind, explain how the following statement is inaccurate. "Antibiotics have created drug resistance in MRSA."

In: Biology

Research the categories of growth media listed below. Describe the use of each one. Name at...

Research the categories of growth media listed below. Describe the use of each one. Name at least two media found in each category and the organisms that can grow on each. If a special reaction occurs in the media, please explain.

Growth media: Defined, Complex, Selective, Differential, Transfer.

Please write a text (not handwritten or cursive)

In: Biology

Identify a molecular diagnostic technique. For the technique you select, write a paragraph describing 4 pre-analytical...

Identify a molecular diagnostic technique. For the technique you select, write a paragraph describing 4 pre-analytical variables.

In: Biology

listing the five greatest advances in the field of immunology in the last 40 years. Of...

listing the five greatest advances in the field of immunology in the last 40 years. Of course, this is a matter of opinion (to a reasonable extent), Be sure to include reasons for selecting the options you chose.

In: Biology

Suppose you wish to be outstanding in your field by studying plant cell biology. You discover...

Suppose you wish to be outstanding in your field by studying plant cell biology. You discover a new strain of wild lima bean plants from Costa Rica that is resistant to being killed by a hydrophobic pesticide. Which one of the following states the most reasonable hypothesis that could explain the nature of the pesticide resistance?

A) Many chloroplast proteins are encoded in the plant nuclear genome. A nuclear gene encoding an enzyme involved in the dark reactions might confer resistance by degrading the pesticide.

B) In the resistant strain, the plant cell wall might contain a novel phospholipid that binds to the pesticide and prevents its entry into the plant cells.

C) The endoplasmic reticulum in the leaf cells of the resistant strain might contain a mutant version of a cytochrome P450 enzyme that helps to remove the pesticide from the membrane.

D) The resistant strain has mutations in actin that inhibit the development of pluripotent cells in the stem, re. This results in active transport of the pesticide via LDL particles interacting with coated pits on the mitochondrial thylakoid membranes.

E) None of the above

In: Biology

For which one of the following observations were both Lamarck's hypothesis and Darwin's hypothesis in complete...

For which one of the following observations were both Lamarck's hypothesis and Darwin's hypothesis in complete agreement?

More complex species are descended from less complex species.
Gradual evolutionary change explains why organisms are well-suited
to their environments.
Acquired characteristics are inherited.
Use and disuse of organs determines their size in progeny.

In: Biology

Please fill out the definition of each term 1.            Antigen presentation 
 2.            Antigen presenting cell (APC) 
...

Please fill out the definition of each term

1.            Antigen presentation 


2.            Antigen presenting cell (APC) 


3.            Antigen receptor 


4.            Adaptive immunity 


5.            Adjuvant 


6.            Afferent 


7.            Affinity maturation 


8.            Allele 


9.            Allelic exclusion 


10.        Anergy 


11.        Antibody 


12.        Antibody isotype (class) 


13.        Antibody isotype (class) switching -- class switch recombination 


14.        Antigen (Ag) 


15.        B cell receptor (BCR) 


16. CD4

17. CD8

18. Cell-mediated immunity

19. Chemokine

20. Chemotaxis

21. Cluster of differentiation (CD)

22. Commensal organism

23. Complement (C')

24. Complementarity determining regions (CDRs)

25. Co-receptor

26. Cytokine

27. DAMP

28. Dendritic cell

29. Effector cell

30. Effector molecule

In: Biology

write a HAIKU for immunology about barrier, so the Haiku should be about barrier.

write a HAIKU for immunology about barrier, so the Haiku should be about barrier.

In: Biology

For the following four very diversified human populations, what are the greatest and least number of...

For the following four very diversified human populations, what are the greatest and least number of alleles for an autosomal gene, a X- linked gene, and a Y-linked gene, respectively?

– Population I: 10 females and 5 males

–Population II: 5 females and 10 males

– Population III: 15 females

– Population IV: 15 males

In: Biology

You are designing different liposomes for drug delivery through the blood stream and for skin application...

You are designing different liposomes for drug delivery through the blood stream and for skin application as a topical lotion. Describe your selection of lipids for each application that would ensure that liposomes remain in a semi-fluid state between liquid-ordered and liquid-disordered states.

In: Biology

You are designing different liposomes for drug delivery through the blood stream and for skin application...

You are designing different liposomes for drug delivery through the blood stream and for skin application as a topical lotion. Describe your selection of lipids for each application that would ensure the liposomes remain in a semi-fluid state between liquid-ordered and liquid-disordered states

In: Biology

(i) What role does the sensory qualities of food have in determining body weight regulation (60%),...

(i) What role does the sensory qualities of food have in determining body weight regulation (60%), (ii) outline key differences in the sensory perception of nutrients between lean and obese individuals (20%), consider additional clinical situations where sensory perception may be lost and what effects this might have on metabolism (20%).

In: Biology