At present, scientists can determine the arrangements or relative position 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 a

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Q: 5 (IAS/2011)
At present, scientists can determine the arrangements or relative position 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?

question_subject: 

Science

question_exam: 

IAS

stats: 

0,87,93,21,3,87,69

keywords: 

{'dna sequences': [0, 0, 0, 1], 'genes': [3, 0, 0, 0], 'chromosome': [2, 0, 0, 1], 'pedigree': [0, 0, 0, 1], 'relative position': [0, 0, 0, 1], 'knowledge': [1, 1, 2, 4], 'resistant animal breeds': [0, 0, 0, 1], 'livestock': [2, 0, 0, 5]}

The correct option is (c) 1 and 3 only.

While determining the arrangements or relative position of genes of DNA sequences on a chromosome is a significant advancement in the field of genetics, it does not enable us to understand the causes of all human diseases (statement 2). There are many complex factors that contribute to the development of human diseases, including genetic, environmental, and lifestyle factors.

However, this knowledge has practical applications in animal breeding. By identifying specific genes associated with desirable traits, such as disease resistance, scientists can selectively breed animals with these traits, leading to the development of disease-resistant animal breeds (statement 3). Additionally, knowing the pedigree of livestock (statement 1) can help in identifying desirable traits in animals and in improving breeding programs.

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