Q. At present, scientists can determine the arrangement or relative positions of genes of DNA sequences on a chromosome. How does this knowledge benefit us?1. It is possible to know the pedigree of livestock.2. It is possible to understand the causes of all human diseases.3. It is possible to develop disease-resistant animal breeds.Which of the statements given above is/are correct?

A) 2 only

B) 1 and 2 only

C) 1, 2 and 3

D) 1 and 3 only

✔ Correct Answer: 1, 2 and 3

Exam Insight

Gene mapping enables scientists to understand hereditary traits, detect genetic disorders, and develop personalized medicine by knowing the arrangement and function of DNA sequences.

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