Genetically modified (GM) crops contain modified genetic material due to : 1. introduction of new DNA 2. removal of existing DNA 3. introduction of RNA 4. introduction of new traits Select the correct answer using the code given below:

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Q: 22 (CDS-I/2016)
Genetically modified (GM) crops contain modified genetic material due to :
1. introduction of new DNA
2. removal of existing DNA
3. introduction of RNA
4. introduction of new traits
Select the correct answer using the code given below:

question_subject: 

Science

question_exam: 

CDS-I

stats: 

0,52,47,22,11,14,52

keywords: 

{'genetic material': [1, 0, 0, 1], 'crops': [6, 1, 6, 7], 'genetically': [1, 0, 0, 6], 'new dna': [0, 0, 0, 1], 'dna': [3, 1, 1, 2], 'rna': [3, 0, 0, 1], 'new traits': [0, 0, 0, 1], 'gm': [1, 1, 1, 3]}

Genetically modified (GM) crops are created by modifying their genetic material, which can involve various processes. The correct answer is option 4, which states that GM crops occur due to the introduction of new DNA, removal of existing DNA, and the introduction of new traits.

Option 1 is incorrect because it includes only the introduction of new DNA and removal of existing DNA. However, genetic modification can also involve the introduction of RNA, as stated in option 3.

Option 2 is also incorrect because it includes the introduction of new DNA, removal of existing DNA, and introduction of RNA. However, it does not mention the important aspect of introducing new traits, which is necessary for genetic modification.

Option 3 is incorrect because it only includes the introduction of RNA, but it does not cover the other processes involved in genetic modification, such as the introduction of new DNA and removal of existing DNA.

Therefore, option 4 is the correct answer as it includes all the mentioned processes: the introduction of new DNA, removal of existing DNA, and the introduction of new traits, which are essential for genetically modifying crops.