DNA extraction
A) uses restriction enzymes to prevent chromosomes from unraveling.
B) can only occur when the gene of interested has be amplified by PCR.
C) occurs only in prokaryotic cells since they lack a protective nucleus.
D) requires that all non-DNA organic compounds be removed with chemicals.

Question

Quizplus · Accepted Answer

DNA extraction involves removing non-DNA organic compounds, such as proteins, lipids and carbohydrates, to obtain pure genomic DNA. This is typically achieved by using chemicals, such as phenol and chloroform, which selectively extract DNA while leaving other biomolecules behind. Restriction enzymes are not used in DNA extraction as their function is to cleave DNA at specific sequences and are commonly used in genetic engineering, while PCR is used to amplify specific DNA sequences. DNA extraction can occur in both prokaryotic and eukaryotic cells, as long as appropriate methods are used to extract DNA from the specific cell type.

DNA Extraction