Q.

Which of the following statements is incorrect

1 Gene is a sequence of nucleotides.  
2 During the process of gene expression, DNA is first copied into RNA  
3 Genes can acquire mutations in their sequence.  
4 Genes cannot acquire mutations in their sequence.  

Ans.

(4)

Genes can acquire mutations. A gene mutation is a change in the DNA sequence that makes up a gene that is permanent and differs from the sequence found in most people.