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sergij07 [2.7K]
3 years ago
8

Before the dna fragments are separated what happens

Biology
1 answer:
Hitman42 [59]3 years ago
3 0
How are DNA fragments separated using gel electrophoresis? ... A solution ofDNA molecules is placed in a gel. Because each DNA molecule is negatively charged, it can be pulled through the gel by an electric field. Small DNAmolecules move more quickly through the gel than larger DNAmolecules.Nov 20, 2007
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First answer gets thanks and 5 stars
Fiesta28 [93]

Answer:

i think the answer is C Gravitational potential energy

Explanation:

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5 0
3 years ago
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Evolutionary theory contends that genetic ___________ is necessary and beneficial for humanity when there is an environmental ch
Anni [7]

Answer:

variation

Explanation:

Genetic variation is what makes us all unique as a result of subtle changes in our DNA.  The Theory of Evolution is a process in which organisms change over time as a result of adapting to their environment.  Charles Darwin came up with the term Survival of the fittest, in any environment plants and animals from the same species show natural variation in their physical characteristics, like neck lengths in giraffes.  Darwin suggested that the plants and animals best suited to the environment will survive and pass on their characteristics to their offspring. Over time, the characteristics of the surviving members of the species will become predominant.

Example: Peppered moth

In London in the 1800's, 98% of peppered moths had light colored bodies and only 2% were dark.  The light moths were the same color as the trees so they could easily hide from hungry birds and not get eaten.  The dark moths however were easy to see and were eaten.  Then came the factories and smoke of the industrial evolution and many trees turned black with soot and suddenly the dark moths were able to survive better as they now looked like the trees and the light colored moths were easier to spot and eat.  By 1895 the dark peppered moths made up 95% of the population and the light colored moths only 5%.  This is an example of natural selection, because of the gene that makes the moths dark, it allowed them to flourish when the environment changed, they adapted, reproduced and survived.

8 0
3 years ago
11. Are fungi more closely related to<br> plants or to bacteria?
hodyreva [135]

Answer:

Computational phylogenetics comparing eukaryotes revealed that fungi are more closely related to us than to plants. Fungi and animals form a clade called opisthokonta, which is named after a single, posterior flagellum present in their last common ancestor.

Explanation:

PLS BRAINLIEST IF THIS HELPS

5 0
2 years ago
What is compiemetary strad of rna
Sav [38]

Answer:

Complementary RNA (cRNA) is a copy of a strand of RNA that will bind to the appropriate region of the original molecule. If the original RNA stand had a base sequence of AUU, for example, the sequence of the cRNA strand would be UAA.

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3 years ago
What are the benefits of plants living on land rather than in water?
zzz [600]

Benefits of living on land: Sunlight is brighter, since it doesn't have to go through water first. More carbon dioxide in the atmosphere than in the ocean. Mineral nutrients are plentiful in the soil.

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3 years ago
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