Which of the following statement about `DNA` is not correct ?

Which of the following statements about DNA is not correct ?

Which of the following statements about DNA is not correct ?

Which of the following statements about Be is not correct?

Which of the following statements about DNA is/are correct? 1. DNA is the hereditary material of all living organisms. 2. All segment 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: