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vesna_86 [32]
3 years ago
9

Which one of the following is NOT a characteristic of DNA Vaccine?

Biology
1 answer:
Stolb23 [73]3 years ago
8 0

Answer:

Option A.  It is produced in vitro

Explanation:

The technique of DNA vaccine involves transfer of genetically engineered or modified form of DNA into body directly with the help of injection. The DNA codes for protein, that protein is antigen and thus provides immunity.

The DNA vaccine can be produced at a low cost and easy to purify. The DNA vaccines are produced in-vivo not in-vitro, so Option A is not a characteristic of DNA Vaccine.

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Answer:

Physically erodes

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3 years ago
Novel combinations of genes can arise from _______.
sertanlavr [38]

Answer:

reciprocal exchange of dna

7 0
3 years ago
Which description accurately describes the cell membrane?
Alex Ar [27]

Answer:

b. a semi-permeable double layer of phospholipids that have hydrophilic heads and hydrophobic tails

Explanation:

B is correct as the cell membrane is selectively semi-permeable. It is selectively semi-permeable because this quality allows it to control what can and can't enter the cell, and how it does so.

The cell membrane also has a phospholipid bi-layer comprised of a double layer of phospholipids which have hydrophilic head and hydrophobic tails. This is because the heads are made of phosphate and are polar and are therefore attracted to water (hydrophilic), while the tails are made of lipids (i.e. fats, oils) which do not mix with water and are therefore hydrophobic.

The properties of each phospholipid is also why they form the double layer structure, the hydrophilic heads naturally face outwards into the water and protect the hydrophobic tails on the inside.

Hope this helped!

4 0
3 years ago
Bacteria in nodules on the roots of plants before an important role in the _______ cycle.​
Sonja [21]
Nitrogen
Not 100% sure tho
5 0
3 years ago
Compare and contrast the elements in Group 1 and the elements in Group 17
IgorLugansk [536]
<span>7 electrons in each outer shell
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Alkali Metals:
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Group 1
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