Answer:
Stephen is not his biological father.
Explanation:
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.
Thus, the correct answer is option (a).
Between 2000 and 2013, fatalities from measles decreased by approximately 75%.
<h3>What do you mean by Measles?</h3>
Measles may be defined as an acute and highly contagious viral disease that is commonly caused by a single-stranded RNA virus known as measles virus.
Fatalities caused by measles in 2000 = 582,800
Fatalities caused by measles in 2013 = 145,700
Total differnce = 437100.
Now, the percentage = 437100/582800 ×100 = 75%.
Therefore, between 2000 and 2013, fatalities from measles decreased by approximately 75%.
To learn more about Measles, refer to the link:
brainly.com/question/881116
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Answer:
I'm sorry but you should do it on your own because if you don't you won't learn the way you should and plus that is cheating.
I think verterbrates have a back bone others do not. I only THINK so.
