Question

Assertion: DNA fingerprinting is helpful to find out hereditary relations.

Reason: The arrangement of nucleotides among close relatives have many similarities.

• A. A and R both are true, but R is not the correct reason for A.
• B. A and R both are true and R is the correct reason for A.
• C. A is true, but R is wrong.
• D. A and R, both are wrong.

Answer 1

The correct option is B A and R both are true and R is the correct reason for A.

DNA fingerprinting is the technology to test the arrangement of nucleotides in the DNA of a person. Since, such arrangements in the DNA of close relatives have many similarities, it becomes possible to find out the hereditary relations using DNA fingerprinting. Same principle is used to identify real parents in case of parental dispute.