Q: 32 (NDA-I/2016)

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Which of the following statements about DNA is/are correct ?
1. DNA is the hereditary material of all living organisms. .
2. All segments of DNA code for synthesis of proteins.
3. Nuclear DNA is double helical with two nucleotide chains which run anti-parallel.
4. DNA is also found in mitochondria.
Select the correct answer using the code given below:
question_subject: 
Science
question_year: 
2016
question_exam: 
NDA-I
stats: 
0,24,512,192,56,248,40