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maksim [4K]
3 years ago
5

Micah is a 17-year-old high school football player who has recently been doing "two a day" practices in preparation for the upco

ming season. He is in good physical condition at 70 inches and 165 pounds. He is attempting to gain weight, so he has increased his intake of protein foods and estimates he eats approximately 3500 kcalories a day. One particularly hot afternoon, Micah is sweating profusely and begins to feel weak and has a difficult time keeping up with his usual practice routines. Noticing that his face is visibly flushed, his coach has him sit out of practice. Micah reports having eaten 2 peanut butter and jelly sandwiches, potato chips, and a can of soda for lunch, about 2 hours before practice. He had a breakfast burrito with eggs and cheese for breakfast with a 12-ounce glass of orange juice.
1. Which is typically one of the early symptoms of dehydration?
a. dry mouth
b. flushed skin
c. fatigue
d. irritability
e. dizziness
2.Based on these signs of dehydration, what percentage of body fluid would you estimate Micah has lost?
a. less than 1
b.1 to 2
c. 3 to 4
d. 5 to 6
e. 7 to 9
3. Micah is considering snack foods and wants to pick items that will improve his hydration. In terms the percentage of water they provide, which of the following would be the best choice?
a. grapes
b. bananas
c. strawberries
d. oranges
e. apples
3. Along with water, what else has Micah lost through sweating?
a. copper
b. manganese
c. iron
d. sodium
e. glucose
5. Assuming his energy intake and energy expenditure are in balance, how much fluid should Micah be taking in each day?
a. 2.0 to 3.5 liters
b. 3.5 to 5.25 liters
c. 5.25 to 7.0 liters
d. 7.0 to 10.0 liters
e. 10.0 to 12.0 liters
6. What brain structure is importantly involved in thirst and water satiety?
a. hippocampus
b. pineal
c. amygdala
d. hypothalamus
e. cerebellum
Biology
1 answer:
Cerrena [4.2K]3 years ago
6 0

Answer:

idk brb i got u ◊√

Explanation:

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The elephants represented in lanes 3 and 5 could have been a match to the ivory sample if you failed to amplify one allele in ei
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About the question:

I failed to find the result of the PCR / electrophoresis. However, I will try to explain when to still consider a sample, and when to exclude it.

Answer:

Probably elephants 1, 2, 4, and 6 exposed a pattern of lines that differed in most alleles from the ivory´s pattern. So they were considered to be different and, hence, excluded. However, elephants 3 and 5 only were different in one allele, which might be due to the amplification failure. In these last situations, the experiment must be run again, and include many markers.

Explanation:

The genetic profile is the series of alleles, characteristic of each individual, concerning a series of DNA fragments.

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In the exposed example, probably we have a profile of the ivory sample, and we need to find out to what individual or population it belongs to. So we need to compare the pattern of bands of the different lanes with the ivory´s pattern of bands.

In resumed terms, if the ivory´s patterns completely match with another lane pattern, then this is the individuals or population to whom it belongs the ivory. However, if they do not match, we need to exclude this individual.

But this is not as easy as it looks like. Sometimes it is difficult to interpret the results because bands are not so clear, and sometimes there are failures during amplification, as said before in the statement of the problem.

In these situations, what you need to do is look for the lanes that match the most with the ivory one and discard those that differ the most. These last patterns probably belong to a different animal or population, that why they can be excluded. Individuals suspected of being the same as the individual understudy or belonging to the same population, must be subducted to a repetition of the study. Also, the use of several markers in the study increases the matches chances.

So, in the exposed example, if the amplification fails in one allele, elephants 3 and 5 could be a match to the ivory sample, probably because all the other alleles do match. You can only exclude them if, after the experiment repetition, the involved allele is still different. On the other hand, you can eliminate the elephants 1, 2, 4, and 6 because their pattern bands are significantly different from the ivory´s patterns, so you do not even need to repeat the experiment.

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