3) You have four tubes containing the same DNA at the sameconcentrationin each tube (pH 7.5) but under different environmental conditions (listed below).  The T_Mfor this DNA molecule is 78°C at physiological salt conditions (~100 mM NaCl):

1. DNA in an aqueous solution that has been digested completely to nucleotideswith DNAse I enzyme.

2. DNA in an aqueous solution containing no salt and has been heated to 78°C.

3. DNA in an aqueous solution containing physiological concentrations of salt and heated to 78°C.

4. DNA in an aqueous solution containing physiological concentrations of salt and is heated only to 37^oC.

Match the samples above with their corresponding OD₂₆₀readings.  Next, explain your reasoning for each of the matches you made.  (For example, “The DNA in sample (a) gives the highest OD reading because…”).

• OD₂₆₀= 1.01 à

• OD₂₆₀= 0.195 à

• OD₂₆₀= 0.713 à

• OD₂₆₀= 0.421 à

3) You have four tubes containing the same DNA at the same concentration in each tube (pH 7.5) but under different environmental conditions (listed below). The TM for this DNA molecule is 78°C at physiological salt conditions (~100 mM NaCl): a. DNA in an aqueous solution that has been digested completely to nucleotides with DNAse I enzyme. b. DNA in an aqueous solution containing no salt and has been heated to 78°C. c. DNA in an aqueous solution containing physiological concentrations of salt and heated to 78°C. d. DNA in an aqueous solution containing physiological concentrations of salt and is heated only to 37oC. Match the samples above with their corresponding OD260 readings. Next, explain your reasoning for each of the matches you made. (For example, “The DNA in sample (a) gives the highest OD reading because…”). • OD260 = 0.620 • OD260 = 0.960 • OD260 = 0.475 • OD260 = 0.271

1. What are some of the major challenges for non-Islamist advocates of democratization and human rights, in the aftermath of the Arab uprisings, especially with regard to political engagement with Islamist groups and political parties?

2. In Egypt, what strategies and methods of political engagement, intervention, or disruption (violent and non-violent) did the Muslim Brotherhood adopt since the 1970s?

1. Can you place the
magnifying glass where the image is magnified even more. If there is such a place, explain.

2.Compare the way a camera works to the way the human eye works. What are the similarities and
differences in the way that each performs its function. In particular, compare the way the camera
and eye focus objects located at different distances.

GENETIC EXPERT

Select and support the most appropriate response, and explain why each of the incorrect statements is eliminate.

Sequencing of the human genome can reveal

A).mutations that do not alter phenotype.

B) mutations that do not alter genotype.

C)which tissues express a gene.

D) how many genes a person has.

E.)epigenetic effects.

1. Markets are essentially led by? (Check all that apply)

   		Government planners.
   		Consumers and producers acting in concert
   		Wall Street
   		An invisible hand

2. Markets are? (check all that apply)

   		A spontaneous configuration of the human energies of millions of people with various skills and talents.
   		The result of companies producing products.
   		Best designed by government
   		The result of consumers demanding products.

"Narrative : Health and Human Services Commission (HHSC) survey of health insurance Problem statement: Kaiser Family Foundation estimated that in 2015 17% of Texans did not have health insurance. HHSC wants to update this number. Assuming a margin of error of 0.03, what should be the sample size at: a) 95% confidence level? b) 99% confidence level?"

Determine the type of interspecific interactions depicted by the examples below.

Mutualism, Competition or Exploitation.

Each each of the given interactions, indicate which organism benefits (+) and which is harmed (-)?

A) Plant roots and fungus living symbiotically: _________________________________

B) Lice in a child’s hair: ______________________________________________

C) Vultures and hyenas in a savanna ___________________________________

D) Microbiota living in a human gut: ____________________________________

E) A caterpillar and a tree: _______________________________________________

Question 2: (50 marks- 500wards)

The nature of a decision process and its rationality are empirical questions that must be addressed by primary field study, experimental tests, and other means. But whatever your view about the sophistication and rationality of decision making, your models must conform to certain basic principles.

a.         Explain the principles of modeling human behavior