Question

question 3
steps of dna fingerprinting
put the following steps of dna fingerprinting in the correct order, from first to last.

1. gel electrophoresis separates dna fragments based on size.
2. the dna pattern is visualized as bands that can be compared between samples.
3. dna is cut into fragments using restriction enzymes.
4. dna is extracted from cells.
5. dna fragments are transferred to a nylon membrane and exposed to radioactive probes.

question 4
which of the following is an application (use) of dna fingerprinting?
a it is used to solve crimes where dna has been left behind
b to identify remains of victims
c to determine familial relationships (whos the baby daddy)
d all of these are uses for dna fingerprinting

Explanation:

Question 3

DNA fingerprinting starts with extracting DNA from cells. Then, restriction enzymes cut the DNA into fragments. Gel electrophoresis separates these fragments by size. The fragments are transferred to a nylon membrane and exposed to radioactive probes. Finally, the DNA pattern is visualized as bands for comparison.

DNA fingerprinting is used in criminal investigations (solving crimes with DNA left behind), identifying victims' remains, and determining familial relationships. So all the given options are valid uses.

Answer:

4, 3, 1, 5, 2

Question 4