Question

What is the number of \[\begin{array}{cc}\\\backslash\phantom{.......}\\\phantom{}\ce{C = O}\\/\phantom{........}\end{array}\] groups present in nitrogen bases of nucleic acids, thymine and uracil respectively?

Options

• 1 and 2

• 2 and 2

• 1 and 1

• 2 and 1

Answer 1

2 and 2

Explanation:

      Thymine

  Uracil