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Art [367]
4 years ago
14

A dna sample is electrophoresed on an agarose gel and stained with ethidium bromide. several dna fragments are observed and are

estimated to be 2500bp, 1500bp, 750bp, 550bp, and 225bp in length. which dna fragment will be closest to the top of the gel? 550bp 1500bp 225bp 2500bp
Biology
1 answer:
denpristay [2]4 years ago
6 0
Quizlet is a good site that can help 

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Name classifications of matter used In the 1800
Veronika [31]
The choices can be found elsewhere and as follows:

<span>atural and synthetic
metabolites and nonmetabolites
proteins, carbohydrates, lipids, and nucleic acids
organic compounds and inorganic compounds

I think the correct answer from the choices is the third option. The c</span>lassifications of matter used In the 1800 are proteins, carbohydrates, lipids, and nucleic acids. Hope this helps.
8 0
3 years ago
Which of the following best defines change in a species over time?
Firlakuza [10]

Answer:

Evolution

Explanation:

4 0
3 years ago
Earth was very different over
andrew11 [14]
It’s C 350 million years ago.
5 0
3 years ago
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If Jacques were to hold his breath the air in his lungs would be kept at a constant temperature. Would it be safe for Jacques to
zzz [600]

Answer:

It isn't safe at all...

Explanation:

Even if remains at constant temperature, while ascending to the surface of the lake Jacques lung pressure will increase if he hold its breath. Thats because the pressure of water weakens and the pre-hold breath in lungs will expand as he rises. This can cause serious lung damage and drowning is possible.

6 0
3 years ago
NEED HELP.
gayaneshka [121]

Answer:

Clear cuts are areas from which every tree has been cut down and removed, in a shelterwood system the old stand is removed in a series of cuttings to promote the establishment of an essentially even-aged new stand under the shelter of the old one, and uncut forests are just your average wild woods, left alone and was never bothered with.

for a simpler answer: clear cuts are clear areas, shelter wood are slight cuts, removing some trees for an environment such as parks and backyards, and uncut forests are wild forests that has no trees cut down.

7 0
3 years ago
Read 2 more answers
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