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Naily [24]
3 years ago
7

What is used to break DNA into smaller pieces ?

Biology
2 answers:
erastova [34]3 years ago
3 0

Answer:

In the laboratory, restriction enzymes (or restriction endonucleases) are used to cut DNA into smaller fragments. The cuts are always made at specific nucleotide sequences. Different restriction enzymes recognise and cut different DNA sequences.

Alexandra [31]3 years ago
3 0

Answer:

restriction enzymes (or restriction endonucleases) are used to cut DNA into smaller fragments.

Explanation:

The cuts are always made at specific nucleotide sequences. Different restriction enzymes recognise and cut different DNA sequences.

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Why dose pressure change inside of earth​
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Because of the increase in hydrostatic pressure

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Endosymbiosis of cyanobacteria is widely accepted as an explanation for the development of chloroplasts. The presence of endosym
lilavasa [31]

Answer:

The correct answer is- photosynthesis

Explanation:

According to the endosymbiotic theory, an ancestral cell engulfed a cyanobacteria and lived in symbiotic association with that bacteria and over time this bacteria evolved into the chloroplast and the ancestral cell developed into plant cell.

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3 0
3 years ago
Explain the effect of DDT on living organisms. PLEASE HELP
Andreyy89

Answer:

In experimental animals, such as mice, rats, and dogs, DDT has shown to cause chronic effects on the nervous system, liver, kidneys, and immune system.  It has also been found that humans, who were occupationally exposed to DDT, suffered chromosomal damage.

Explanation:

5 0
3 years ago
a student is making a model to illustrate the functions of ADP and ATP in photosynthesis. which model best illustrates the role
Semmy [17]

Choices from another source

A. A power plant that generates energy

B. A rechargeable battery that stores and releases energy

C. A pigment that receives the energy of sunlight

D. A pan that carries coal

E. A hammer that helps break apart water molecules

Answer:

B

Explanation:

A. A power plant that generates energy - false, this is more like the mitochondria - the site where the reactions that produce energy take place.

B. A rechargeable battery that stores and releases energy - true, this is a good explanation of ADP being charged to become ATP, providing energy for reactions

C. A pigment that receives the energy of sunlight - false, this is chlorophyll

D. A pan that carries coal  - false, this implies more of a transport role

E. A hammer that helps break apart water molecules - false, this implies more of a physical role .

4 0
3 years ago
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