Explain how you determined the concentration of protein in milk. b) What is the purpose of a blank? c) What data is graphed in a standard curve? d) You determine the equation of the line to be y=2.56x-0.07 (you graphed the mg/ml on the y axis). Your unknown sample has an OD of 1.135. What is the concentration of the sample?
Explain how a serial dilution is performed and why we used this technique in lab. b) A student counts 8
colonies on a 106 dilution LB plate. The student plated 200ul of the 1ml dilution. What is the concentration of
cells in the original liquid stock?
The autonomic nervous system is involuntary. It controls the heart, smooth muscles, and some glands during times of stress and of relaxation. The two parts of the brain that control the autonomic nervous system are the medulla oblongata and pons hypothalamus and medulla oblongata and thalamus hypothalamus and thalamus
The data below is for a hypothetical study investigating the Systolic Blood Pressure (SBP) of construction workers. The table shows respective measurements of 20 workers along with hours of work per day and the area of the city the work took place. l [You can use Excel-Data Analysis – Regression or http://vassarstats.net/multU.htm|] a) What is the regression equation? b) Interpret the meaning of the slopes in this problem. d) At the 0.05 level of significance, determine whether each independent variable makes a contribution to the regression model. Indicate the most appropriate regression model for this set of data. e} Interpret the meaning of the coefficient of determination. 2} The following table includes the number of mg of a particular drug administered in a treatment, along with the survival outcome of the patient
Explain how the light (photo-) reactions and carbon (-synthesis) reactions work together to make
photosynthesis happen. (2) 1 1. Considering the two phases of photosynthesis, a) what molecule is
synthesized in the “synthesis” phase? b) In which phase does carbon fixation take place?
Please give the definition of the rule of hypodescent 2. Is a pseudoscience that attempted to use a scientific methodologies to prove the escudete ce of separate races and , in particular, the superiority of the white race and the inferiority of all nonwhites ? 3. Base in the chapter ” race and racism” which of the below is not a type of racism ? Individual racism Racial ideology Hypodescent Structural racism 4. The so called “one drop rule” Is an illustration of the biologization of race Defined people as black if they had a single African ancestor Is an expression of social control over African Americans All of the above
Genetic variation is what makes everything unique. Genetic engineering and traditional plant breeding harness the natural genetic variation that arises during meiosis.
The human population is growing, and it is growing faster than anticipated. How might genetic variation crop varieties deliver food security for future generations?
Which of the following are not functions of the fat body? Immune response Growth regulation Storage Water regulation Appendages can move without signals from the insect brain.
Which one of our excretory mechanisms is mainly responsible for maintaining the homeostasis in Sodium and Potassium levels? Skin intestines kidneys lungs What could cause Linda’s Sodium and Potassium levels be where they are? ” 1 point: she consumes too much table salt something in her body is rejecting Potassium, so she keeps having to pee it out she probably has nephritis, so her kidneys are not in working order there is an osmotic gradient problem in her kidneys Based on the last sentence above, what do you think her likely diagnosis could be? What part of the homeostatic mechanisms is not doing its job and may need more tests?
What are the two types of nucleic acids and what does the structure of a nucleotide consist of? 2. In your own words, what are the differences and major steps, and role players, of DNA replication?
