Homework Answers
b) Overweight
Low evels of leptin causes severe obesity in humans , Affected
individualls are constantly hungry and quicklly gain weight. The
extreme hunger also leads to chronic excessive eating (hyperphagia)
and thus obesity .
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If a person has a defective gene for leptin where they do not produce very much...
1. A person has a mutation in their leptin gene, such that the leptin they make...
1. A person has a mutation in their leptin gene, such that the leptin they make cannot bind to the leptin receptor. What do you predict about their weight/BMI? WHY? 2. A person has a mutation in their leptin receptor, such that it can bind to leptin, but then the receptor fails to activate. Will leptin be a viable treatment for this person? WHY? 3. Insulin binds to an insulin receptor on a cell. The receptor dimerizes and becomes phosphorylated...
Imagine the parents learn that Joey has one defective MC4R gene, inherited from one of them....
Imagine the parents learn that Joey has one defective MC4R gene, inherited from one of them. Mr. Rhys continues to believe that his and joey’s continued weight gain is inevitable and that changing their diet will have no effect. Mrs Rhys thinks that the family’s dietary choices and inactivity might play a larger role than heredity. 1) what environmental factors might be contributing to this family’s weight and health problems ? 2) do you think that obesity is inevitable for...
Suppose that a person has a mutation in a gene that encodes an enzyme responsible for...
Suppose that a person has a mutation in a gene that encodes an enzyme responsible for the production of histamine. In this person, mast cells cannot produce and secrete histamine. Which of the following outcomes is most likely to happen if an injury occurs? a. Neutrophils will not be able to phagocytose pathogens at the injury site. b. Neutrophils will not be attracted to the injury site. c. Macrophages will not be able to secrete signaling molecules. d. Macrophages will...
Part E. Genetic Influence on Body Weight Genes can influence a person's body weight in a...
Part E. Genetic Influence on Body Weight Genes can influence a person's body weight in a variety of ways. For example, genetic factors can affect levels of appetite hormones, rate of thermogenesis, or the degree to which an unhealthy environment will affect an individual's ability to maintain energy balance. Choose the statement below that correctly describes genetic influence on body weight View Available Hint(s) Family members often have similar body weights, even if they live in different environments. According to...
Sally is a 43-year-old mother of two who has gained 50 pounds over the past 5...
Sally is a 43-year-old mother of two who has gained 50 pounds over the past 5 years. She is 64 inches tall and weighs 180 pounds with a BMI of 31. Her waist circumference is 37 inches. She acknowledges that she is not as physically active as she would like to be. She also notes how recent stresses in her life have affected her sleep and seem to have triggered her appetite for sweets and comfort foods. Sally’s father recently...
Suppose you are interested in estimating how health affects productivity. Specifically, you are interested in the...
Suppose you are interested in estimating how health affects
productivity. Specifically, you are interested in the following
regression:
where Yi is a variable representing the income earned by person
i, and Xi is a variable representing the health of person i.
Income is a fairly straightforward concept to capture. Health,
however, is a more complex concept that can be measured in many
different ways. For example, body mass index (BMI - weight in
kilograms, divided by height in meters squared)...
In the United States, overweight and obesity are widespread nutritional problems that have reached epidemic proportions....
In the United States, overweight and obesity are widespread nutritional problems that have reached epidemic proportions. An overweight person has extra body weight that is contributed by bone, muscle, body fat, and/or body water. Obesity, however, is a condition characterized by excessive and unhealthy amounts of body fat. Some body fat is essential for good health, but people who are overweight or obese ("overfat") have a greater risk for serious, chronic health conditions and diseases To determine whether a person's...
Jacob has been working a much longer shift than he expected and is very hungry. He...
Jacob has been working a much longer shift than he expected and is very hungry. He is slightly hypoglycemic; luckily, he has no pathology that prevents his body from reacting appropriately. Predict what hormonal changes can be expected in Jacob in response to his low blood glucose levels, the effect that hormone will have within the body, and the specific fuel source that his cells will utilize for their metabolic needs in response to this situation.
This a very important assessment so if you are not sure of the answer please let...
This a very important assessment so if you are not sure of the
answer please let someone else answer the question, in order for me
to understand.
Compare LH production in Alan, Charles, David, Jackson, Robert
and Stan.
Bill is most likely suffering from one of two possible genetic
mutations that effect his reproductive endocrine system. Describe
what the two most likely genetic mutations are that he is suffering
from and describe the easiest therapeutic way without genetic
testing that...
Genetics Worksheet Week 3: Gene Regulation and Epigenetics 1. Duchenne muscular dystrophy is caused by a mutation in a gene that is 2.5 million nucleotides in length and encodes a protein called dyst...
Genetics Worksheet Week 3: Gene Regulation and Epigenetics 1. Duchenne muscular dystrophy is caused by a mutation in a gene that is 2.5 million nucleotides in length and encodes a protein called dystrophin. The dystrophin protein itself is 3684 amino acids in length. Calculate below the approximate size of the mRNA that encodes dystrophin. Approximately what percentage of the gene that encodes dystrophin is intron sequence? The human genome encodes a much greater variety and number of proteins than the...
Part E. Genetic Influence on Body Weight Genes can influence a person's body weight in a variety of ways. For example, genetic factors can affect levels of appetite hormones, rate of thermogenesis, or the degree to which an unhealthy environment will affect an individual's ability to maintain energy balance. Choose the statement below that correctly describes genetic influence on body weight View Available Hint(s) Family members often have similar body weights, even if they live in different environments. According to...
Suppose you are interested in estimating how health affects
productivity. Specifically, you are interested in the following
regression:
where Yi is a variable representing the income earned by person
i, and Xi is a variable representing the health of person i.
Income is a fairly straightforward concept to capture. Health,
however, is a more complex concept that can be measured in many
different ways. For example, body mass index (BMI - weight in
kilograms, divided by height in meters squared)...
In the United States, overweight and obesity are widespread nutritional problems that have reached epidemic proportions. An overweight person has extra body weight that is contributed by bone, muscle, body fat, and/or body water. Obesity, however, is a condition characterized by excessive and unhealthy amounts of body fat. Some body fat is essential for good health, but people who are overweight or obese ("overfat") have a greater risk for serious, chronic health conditions and diseases To determine whether a person's...
This a very important assessment so if you are not sure of the
answer please let someone else answer the question, in order for me
to understand.
Compare LH production in Alan, Charles, David, Jackson, Robert
and Stan.
Bill is most likely suffering from one of two possible genetic
mutations that effect his reproductive endocrine system. Describe
what the two most likely genetic mutations are that he is suffering
from and describe the easiest therapeutic way without genetic
testing that...
Genetics Worksheet Week 3: Gene Regulation and Epigenetics 1. Duchenne muscular dystrophy is caused by a mutation in a gene that is 2.5 million nucleotides in length and encodes a protein called dystrophin. The dystrophin protein itself is 3684 amino acids in length. Calculate below the approximate size of the mRNA that encodes dystrophin. Approximately what percentage of the gene that encodes dystrophin is intron sequence? The human genome encodes a much greater variety and number of proteins than the...
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