Question

Arrange the steps for DNA profiling in order from first to last. - Compare DNA profile to sample of interest, such as potential family member or suspect. - Obtain DNA from a sample, such as blood or hair roots. - Amplify DNA with PCR.

- Determine the number of STR repeats at a site in both homologous chromosomes. - Generate DNA profile listing genotypes for all STR sites.

Answer 1

The steps for DNA profiling in order are: obtaining DNA from a sample, amplifying the DNA using PCR, determining the number of STR repeats, generating a DNA profile, and comparing the profile to a sample of interest.

Step-by-step explanation:

1. Obtain DNA from a sample, such as blood or hair roots.
2. Amplify DNA with PCR.
3. Determine the number of STR repeats at a site in both homologous chromosomes.
4. Generate DNA profile listing genotypes for all STR sites.
5. Compare DNA profile to sample of interest, such as potential family member or suspect.

Answer 2

The steps for DNA profiling include obtaining DNA, amplifying it with PCR, determining the number of STR repeats, generating a DNA profile, and comparing it to a sample of interest.

Step-by-step explanation:

The steps for DNA profiling, in order from first to last, are as follows:

1. Obtain DNA from a sample, such as blood or hair roots.
2. Amplify DNA with PCR (polymerase chain reaction).
3. Determine the number of STR (short tandem repeat) repeats at a site in both homologous chromosomes.
4. Generate a DNA profile listing genotypes for all STR sites.
5. Compare the DNA profile to a sample of interest, such as a potential family member or suspect.

By following these steps, forensic scientists can identify individuals involved in crimes or determine parent-child relationships based on DNA evidence.