Concept explainers
A1.
To determine: The twin infants.
Introduction: Short tandem repeats (STR) are short sequences of DNA found in various locations in the human genome. The numbers of the STR are variable in the population. It can range from 4 to 40 in different individuals.
A2.
To determine: The identical twins.
Introduction: Individuals inherit different numbers of repeats from each parent. The unrelated individuals rarely have identical STR pattern. The STR pattern can be analyzed by the in situ hybridization probe that allows a specific
B.
To explain: How to match a pair of twins to the correct parents.
Introduction: STR is a pattern of analysis of two or more
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