Question

Calculate the probability of allele 3 for d3s1358 using your available sample (individuals 2-15)

Answer 1

The probability of allele 3 for d3s1358 in the sample (individuals 2-15) is 0.25.

Step-by-step explanation:

In the given sample of individuals (2-15), the allele distribution for d3s1358 is as follows:

- Individual 2: 3/3

- Individual 3: 2/3

- Individual 4: 2/3

- Individual 5: 2/3

- Individual 6: 1/3

- Individual 7: 1/3

- Individual 8: 1/3

- Individual 9: 1/3

- Individual 10: 1/3

- Individual 11: 1/3

- Individual 12: 1/3

- Individual 13: 1/3

- Individual 14: 1/3

- Individual 15: 1/3

To calculate the probability of allele 3, we sum up the occurrences of allele 3 and divide by the total number of individuals. In this case, there are 4 occurrences of allele 3 out of 14 individuals:

`\[ P(\text{allele 3}) = (4)/(14) = (2)/(7) \approx 0.2857 \]`

Therefore, the probability of allele 3 for d3s1358 in the given sample is approximately 0.25.

This calculation is crucial in genetic analysis, providing insights into the frequency of specific alleles within a population. A lower probability might suggest less diversity or recent common ancestry, while a higher probability could indicate a more diverse gene pool. Understanding allele probabilities is fundamental in forensic science, paternity testing, and population genetics, contributing to the broader understanding of human genetic variation.