For what reasons do some species of bacteria secrete DNase into the environment?

ID: 52247 • Letter: F

Question

For what reasons do some species of bacteria secrete DNase into the environment? Select all that apply.

DNase is an enzyme that degrades DNA into paired oligonucleotides.

Foreign DNA can be used as a source of sulfur.

If DNase were not secreted, it might degrade the cell's own DNA.

Foreign DNA molecules in the environment are toxic to the cell and need to be neutralized.

DNase is an enzyme that polymerizes DNA to replicate the chromosome.

Foreign DNA can be degraded into units that can be recycled into the cell's own DNA.

Foreign DNA can be used as a source of carbon.

DNA molecules are large and difficult for a cell to take up whole.

Foreign DNA can be used as a source of energy.

Foreign DNA can be used as a source of nitrogen.

DNase is an enzyme that degrades DNA into paired oligonucleotides.

Foreign DNA can be used as a source of sulfur.

If DNase were not secreted, it might degrade the cell's own DNA.

Foreign DNA molecules in the environment are toxic to the cell and need to be neutralized.

DNase is an enzyme that polymerizes DNA to replicate the chromosome.

Foreign DNA can be degraded into units that can be recycled into the cell's own DNA.

Foreign DNA can be used as a source of carbon.

DNA molecules are large and difficult for a cell to take up whole.

Foreign DNA can be used as a source of energy.

Foreign DNA can be used as a source of nitrogen.

Explanation / Answer

Many pathogenic bacteria produce extracellular DNase, but the benefit of the enzym is grouth advantage by enlarging the pool of available nucleotides by DNA hydrolysis.

The followings are correct

DNase is an enzyme that degrades DNA into paired oligonucleotides.

Foreign DNA can be used as a source of sulfur.

Foreign DNA molecules in the environment are toxic to the cell and need to be neutralized.

DNase is an enzyme that polymerizes DNA to replicate the chromosome.

Foreign DNA can be degraded into units that can be recycled into the cell's own DNA.

DNA molecules are large and difficult for a cell to take up whole.

Foreign DNA can be used as a source of nitrogen.

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For what reasons do some species of bacteria secrete DNase into the environment?

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