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iogann1982 [59]
3 years ago
11

Why did Miller use ammonia , methane and hydrogen his experiment

Biology
1 answer:
ladessa [460]3 years ago
4 0

Answer:

hold on

Explanation:

working on it

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DNA gel electrophoresis begins with using enzymes that do what
sveticcg [70]

Answer:

separate DNA fragments according to their size.

Explanation:

Gel Electrophoresis of DNA demonstrates how DNA can be specifically cut into fragments by restriction enzymes and then can be separated by fragment size on an agarose gel.

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3 years ago
What is 6.9 × 107 written in standard form?
erastovalidia [21]
10^7 would be 69000000. You do this by moving the decimal by the number of powers on the 10.
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3 years ago
Help please! much appreciated
Alexxx [7]
What do you need help with ?
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Many studies have indicated that there is some genetic influence on body weight and composition. Researchers have established a
sukhopar [10]

Answer:

A

Explanation:

The thrifty gene hypothesis postulates that due to dietary scarcity during human evolution, people are prone to obesity by storing energy as fat, an ability to take advantage of rare periods of abundance  and this is advantageous during times of food availability. individuals with greater adipose reserves would more likely survive famine. This tendency to store fat could lead to obesity.

FTO is an enzyme that is encoded in humans by FTO gene located on chromosome 16. Increase in this enzyme is associated with the regulation of energy intake but not feeding reward. Also, the set point theory indicates that bodies are meant to stay within a narrow weight range but it is susceptible to chnage overtime.

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3 years ago
The oral contraceptive pill works mainly by: raising the estrogen levels so the female does not ovulate. preventing the egg from
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Raising oestrogen levels so female doesn’t ovulate
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