Question

how many copies of this str did this man inherit from his father? options: 4, 6, 10, 92, 138

Explanation:

Step1: Identify paternal chromosome STR

The paternal chromosome's STR region shows 4 copies (labeled 1-4).

Step2: Confirm inheritance

Each parent contributes one chromosome's STR copy; the father's contribution is 4.

Answer:

4