AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

RECOMBINANT DNA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Who are the only people that have identical DNA fingerprints?
A
a mother and her children
B
faternal twins
C
identical twins
D
all of the above
Explanation: 

Detailed explanation-1: -In fact, the National Forensic Science Technology Center states that, “no two people have ever been found to have the same fingerprints-including identical twins.” Also, it’s important to keep in mind that fingerprints also vary between your own fingers-this means you have a unique print on each finger.

Detailed explanation-2: -They come from the same fertilized egg and share the same genetic blueprint. To a standard DNA test, they are indistinguishable. But any forensics expert will tell you that there is at least one surefire way to tell them apart: identical twins do not have matching fingerprints.

Detailed explanation-3: -They are identical because both siblings have the same set of DNA from mom and the same set of DNA from dad. Since both sets are the same they share 100% of their DNA. Fraternal twins are really just siblings who share the same womb. Each starts out as a separate egg fertilized by a separate sperm.

There is 1 question to complete.