AIIMS 2010
- Exam
- AIIMS
- Year
- 2010
- Subject
- Zoology
- Chapter
- Molecular Basis of Inheritance
AIIMS 2010 · Zoology · Molecular Basis of Inheritance
Assertion : DNA fingerprinting involves identifying differences in...
Assertion : DNA fingerprinting involves identifying differences in specific regions in DNA sequence.
Reason : DNA fingerprinting is the basis of paternity testing.
Options
- AIf both assertion and reason are true and reason is the correct explanation of assertion
- BIf both assertion and reason are true but reason is not the correct explanation of assertion
- CIf assertion is true but reason is false
- DIf both assertion and reason are false.
Correct answer
B. If both assertion and reason are true but reason is not the correct explanation of assertion
Step-by-step solution
DNA fingerprinting involves identifying differences in some specific regions in DNA sequence called as repetitive DNA, because in these sequences, a small stretch of DNA is repeated many times. These sequences normally do not code for any proteins, but they form a large portion of human genome. These sequence show high degree of polymorphism and form the basis of DNA fingerprinting. As the polymorphisms are inheritable from parents to children, DNA fingerprinting is the basis of paternity testing in case of disputes.