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Human Biology

Death from cancer through radiation exposure

A Radiology Tech, died of cancer believed to be caused by many years of exposure to radiation. Death due to Cancer is seen to be at much higher risks for certain occupations. Could the cancer been caused by some other agent/s? Being specific in your own words

Asthma as an epidemic in children

How is asthma affecting children and what is being done about it. a short cause and effect study in asthma and its ramifications with the children and the environment

Working out a Conversion Factor for Glucose Tolerance Test

Hi. I have to write a practical report for Glucose Tolerance test. I have tried and tried but am struggling. I need to take into account any sampling and or dilution involved in the experiment and work out a conversion factor(hope that makes sense)so that my results can be expressed as mg of glucose per 100cm3 of original bloo

Regulation of water by kidney

Compare and contrast the ascending and descending limbs of the loop of Henle with regard to transport of sodium, chloride, and water.

Bioinformative Assignment - Diagnostic Restriction Digests

THE PROBLEM you have decided to study DNA repair and recombination in E.coli. your best buddy from graduate school sends you a clone of the recA gene. she has told you that the gene is included in 3.266 Kb Bam HI genomic fragment that she has cloned into the pBC vector. however, she has neveer checked the orient

The Molecular Version of Koch's Postulates

For the table attached pick one of the gene products, and write a hypothetical Koch's postulates molecur version to identify the gene product as a virulence factor in the infection model, which is also listed on the table.

Monod Kinetics

Bacteria used to degrade a contaminant in a bacth reactor are found to grown on the contaminant with Monod Kinetics. Assuming Umax (the max specific growth rate)=10 per day, and Ks (called half velocity constant)=5mg/L and Kd (the decay constant)=0.05 per day. At what value of S (the substrate concentration) will dX/dt=0. (X

Inheritance of dibetes mellitus

Hundreds of human diseases are characterized by a genetic component, such as familial breast cancer. These diseases may run in your family and can currently be tested for. Prepare a 200-word report for your own family members about the current state of knowledge on any such diseases and the tests available. Describe the disease,

NEED HELP COMPOSE AN ARGUMENT OF HEALTHY DIET

Discuss why you would or would not choose the reduced-fat product as part of a healthy diet. Include in your discussion the RDA guidelines recommending less than 30% of total calories come from fat.

Supporting or Refuting Taxing High-Fat Foods

In the United States, many states now impose taxes on tobacco to discourage smoking and to help offset the health costs associated with smoking. However, heart disease, which has been linked to a high-fat diet, is the country's number one killer. In addition, more cancer cases in the United States are related to diet than to smo

How do physical and chemical laws limit animal form?

Explain how physical and chemical laws affect a living organism. Also, provide an example of how an organism has evolved to adapt to its physical or chemical environment. Then, answer the following question: Why do you think physical and chemical laws relate functions to structures and vice versa?

Nutritional Caloric Content

In lab, you try burning marshmallows to estimate their caloric content. a) if a large marshmallow, when burned completely, raises the temperature of 1L of water 40 degrees, what is the approximately caloric content measured in nutritional calories (kcal or Cal)? b) how many calories would be required to raise 500g of water 3 de

Genetic Technology

One of the concerns mentioned in the chapter regarding the use of genetic technology centers around privacy issues such as "genetic discrimination." Once we improve our ability to screen the human genome for disease susceptibility, is there any level of testing that should be required by society as a means of reducing health car

Sport supplements are examined.

Companies that sell sport supplements make billions of dollars each year claiming by consuming their products the person can lose or gain weight. Assume the body weight is genetically determined and that any gain or loss in weight will cause the body to activate homeostatic mechanisms to cause the body to return to the original

Sports Srinks, Electrolytes and Hydration.

When it replenishes these nutrients, it can rehydrate and regulate its body temperature. Once the body temperature returns to normal, it can then return to physical activity. Explain why sports drinks might or might not aid in thermo regulation. Why do you think knowing abut thermo regulation can help you make informed choices a

Negative Feedback Loops

How might negative feedback loop explain why people who lose large amounts of weight chain that weight back? Explain the weight cycle in perms of the negative feedback loop. Do you think that weight in humans is regulated by a negative loop? Why or why not? Do you think weight is controlled by a negative feedback loop that is ge

Sickle-Cell Anemia

The text notes that an alternate allele of the hemoglobin gene can cause sickle-cell anemia when a person is homozygous for this allele, but that a person who is heterozygous for the allele actually can derive a benefit from it--protection from malaria. In the United States, 8 percent of African Americans are carriers for the si

Protein Production in Down's Syndrome

People who are born with the condition called Down syndrome generally have three copies of a certain chromosome (chromosome 21), rather than the usual two copies. In 200 words, what can you deduce from this regarding the proteins produced by a person with Down syndrome?

The debate of taxing high-fat foods is included.

In the United States, many states now impose taxes on tobacco to discourage smoking and to help offset the health costs associated with smoking. However, heart disease, which has been linked to a high-fat diet, is the country's number one killer. In addition, more cancer cases in the United States are related to diet than to smo

Physiological changes occur during exercise

Many physiological changes occur during exercise. a. Design a controlled experiment to test the hypothesis that an exercise session causes short-term increases in heart rate and breathing rate in humans b. Explain how at least three organ systems are affected by this increased physical activity and discuss interactions among t