George on one pair of his chromosomes has STRs of lengths 6 and 7, Stephen (his father) STRs of lengths 3 and 6, and Mary (his m
other) STRs of lengths 6 and 7. Which of the following statements can be assumed with the information given? a. Stephen is not his biological father
b. George was adopted
c. Mary and Stephen are both his biological parents
d. Not enough information to determine paternity
e. Mary is not his biological mother
DNA fingerprinting is a technique use to determine the DNA sequence of an individual organism. Short tandem repeats are unique among the individuals ans used to identify the individual in population.
The George DNA fingerprinting shows that he has STRs length of 6 and 7. Stephen's STRs does not match with his son George whereas Mary shows some similarities with George STRs. This indicates that Stephen is not the biological father of George because the biological father's STRs must match with the children STRs.
Investigators should keep in mind that eyewitness identification is highly infallible. true, since the law takes the identification as a positive test and completely commits those involved and an error in it could tarnish the course of justice and consequently of the investigators.
One easy way to measure the "size" of a ball is how far it is from side to side. Your tennis ball example is a good one: a typical tennis ball is about 2.5 inches form side to side.
