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docker41 [41]
3 years ago
10

Explain the role of air pressure, air masses and weather fronts in the formation of meteorological events such as thunderstorms,

tornadoes or hurricanes. Use quotes from the article to support your explanation.
Use the pictures to support your descriptions, explanations and predictions.

Biology
1 answer:
PtichkaEL [24]3 years ago
5 0

Hi,

here u go!!

Air masses are slowly pushed along by high-level winds, when an air mass moves over a new region, it shares its temperature and humidity with that region. ... For example, when a colder air mass moves over warmer ground, the bottom layer of air is heated. That air rises, forming clouds, rain, and sometimes thunderstorms.

hope it helps!!

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You determine that you have only three copies left of an important DNA fragment, so you decide to amplify it. Using flanking pri
kicyunya [14]

Hello. This question is incomplete. The full question is:

"You determine that you have only 3 copies left of an important DNA fragment, so you decide to amplify it. Using flanking primers, how many PCR cycles would you have to run to generate over one billion (10^9) copies of the fragment? "

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Approximately 29 cycles of PCR would be required.

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In this case, if a researcher wants 10 ^ 9 copies of DNA, he must do the following calculation to find the number of PCR cycles needed:

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