Question

All the somatic cells of an organism contain similar
I. DNA sequences
II. Protein structures
III. RNA sequences

• A. I only
• B. II only
• C. III only
• D. I and II
• E. I and III

Answer 1

The correct option is A I only

All somatic cell of an organism are derived from mitosis in the zygote and have same DNA sequence. Gene expression in each cell is determined by its functioning. Cells performing various functions express different genes and hence have different RNA and protein products. So, the correct answer is A.