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yuradex [85]
3 years ago
13

DNA gel electrophoresis begins with using enzymes that do what

Biology
1 answer:
sveticcg [70]3 years ago
4 0

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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Why aren't there many meteors in the troposphere
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<span>gravity and would burn up

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3 years ago
Explain how the Naked DNA exploits vector's DNA ability to make a vaccine.
mixer [17]

Answer:

DNA vaccines consist of DNA vectors or plasmids (small double-stranded DNA rings originally derived from bacteria, but unable to cause infection) into which the genes encoding one or more immunizing proteins of the infectious agent have been inserted causing the disease to be prevented.

Explanation:

Vectors are the functional unit of naked DNA vaccines. Genes that encode the proteins of interest and are of bacterial origin are inserted into these vectors. Bacterial plasmids are circular DNA molecules that self-replicate extrachromosomally in bacteria. The genes encoded in these plasmids are under the control of promoters, almost always of viral origin. When a plasmid is introduced into the cell it translocates to the nucleus, where transcription of the transgene begins; the transcripts are then taken to the cytoplasm and translated there. The newly synthesized proteins are degraded in the proteasome to 8-10 amino acid peptides, which are transported to the endoplasmic reticulum. Peptides of high affinity with their respective MHC I molecule stabilize and enter the secretory pathway, thus reaching the cell surface, where they are coupled with the T-lymphocyte receptor (TcR) present on the surface of T lymphocytes cytotoxic drugs (CD8 +) to induce their activation.

4 0
3 years ago
Scientific knowledge is always changing. At one time, the kingdom was the
Naddika [18.5K]

Answer:

D

Explanation:

Organisms can be separated into different classifications due to many differences phenotypically or genetically. As we have progressed, research has shown differences allowing us to see bacteria and archaea as different organisms.

8 0
3 years ago
Read 2 more answers
When a honeybee pollinates a flower, the symbiosis would be _______
Sedaia [141]

Answer:

The relationship between them is mutualism because both organisms benefit.

Explanation:

The honey bee gains nectar from the plant while the flower is pollinated.

PLEASE MARK AS BRAINLIEST.

8 0
3 years ago
Which of the following produces the greatest amount of carbon dioxide?
Akimi4 [234]

Answer:

no 1. A is the answer

Explanation:

hope this helps and plz mark me as the brainliest

5 0
3 years ago
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