In the DNA extraction from cheek cells, protocol you used cold ethanol to:

A.) Precipitate the DNA B.) Break open the nuclear membrane C.) Separate the nucleus from the other organelles D.) Denature the nuclear proteins

1. Make a single concept map using ALL of the terms provided below:

*The terms are not in any particular order.

carbohydrate               enzyme                  active site              substrate                     

lactose                         gene                      glucose                  nucleotide

protein                   galactose                     DNA                     activation energy

amino acid            monosaccharide      disaccharide                catalyst

1. Which of the following stages of cellular respiration makes the most ATP?

   		glycolysis
   		citric acid cycle
   		oxidative phosphorylation

Porphyrin ring molecules are critical both for oxidative phosphorylation in the mitochondria and for photosynthesis in chloroplasts. Compare and contrast the role of this type of molecule in each process. Explain the roles of O2 and H2O in each process as well.

Please explain what would have been their chance of survival 100 years ago with Escherichia coli (E.Coli)? What was the chance of survival 30 years ago for someome with Escherichia coli (E.Coli) ?

What do you know about the profession of Surgical Technology and what interests you about it? 500 word response.

Please explain what would have been their chance of survival 100 years ago with Escherichia coli (E.Coli)? What was the chance of survival 30 years ago for someome with Escherichia coli (E.Coli) ? what are the chances today?  and what will the chances most likely be 10 years from now?

24. List examples of selfish behavior, cooperative behavior, altruistic behavior, and spiteful behavior.

Question 9 (4 pts)

The genetic term “loss of function” is used to describe any mutation in the DNA that leads to a particular protein that cannot function. There are many reasons why a protein may not be functioning any longer…digging into your knowledge on mechanism of gene expression and gene expression regulation, describe a mutation that could lead to a loss of function mutation. Where is the mutation in the gene? What function of gene expression or gene expression regulation is it affecting? How is it leading to a loss of function for the protein encoded for within that gene?

But I’m going to restrict your answer…describe a mechanism that DOES NOT include a point mutation leading to missense, nonsense or frameshift – in other words, choose a mutation/mechanism other than a mutation that leads to a change in the protein coding region of a mature mRNA. I want you to think outside of that particular box.

What is a kilocalorie?

Select one:

A. The amount of energy required to raise 1.0 Kilogram of water 1.0 degree Celsius

B. The amount of energy required to raise 100.0 ounces of water 1.0 degree Celsius

C. The amount of energy required to raise 1.0 gram of water 1.0 degree Celsius

D. The amount of energy required to raise 1.0 gram of water 100.0 degrees Fahrenheit

E. The amount of energy required to raise 1.0 Kilogram of water 100.0 degrees Celsius

What is fitness? Explain why fitness involves all your relatives, not just your offspring.

Question 46 options:

Antibodies carrying fluorescent dyes can be used to tag proteins in a process termed ( indirect or direct) immunofluorescence. Choose one in bold

Coliforms in a water sample indicate __________ contamination.

Question 76 options:

Which of the following is NOT an example of direct person-to-person disease transmission?

Question 79 options:

Question 80 (1.25 points)

Which pathogen is NOT matched with the correct disease?

Question 80 options:

The human microbiome can best be defined as?

Question 82 options:

Question 83 (1 point)

Suzie contracted chlamydia after having unprotected sex. This would be an example of…

Question 83 options:

Hello,

please try to answer it as accurate as you can because answer accuracy is the most important.

1_Before a cell undergoes mitotic cell division:

a)what has to happen first, regarding its DNA?

b)If (what you wrote in 2a) didn’t happen, what problem would arise?

2_There are some cells which after they mature (fully differentiate into their specific cell type) never undergo division (such as heart muscle cells) again. These cells are in what phase? _________

3_How are phosphates involved in regulating the activity of a cyclin dependent kinase (Cdks)?

4_ How does cytochrome c initiate apoptosis? What are the roles of Bax and Bak in this initiation? How does Bcl affect apoptosis?

Briefly give an evolutionary argument for human testes, our inability to make vitamin C, and our eyes. (NOTE: Not a description of each evolutionary development in the question)