Q. Consider the following statements about DNA and RNA:
1.The nitrogenous bases in RNA are adenine, guanine, cytosine, and uracil.
2.The nitrogenous bases in DNA are adenine, guanine, cytosine, and thymine.
3.DNA works as a messenger between ribosome and the RNA.
How many of the above statements are correct?
Answer: B
Notes:
Explanation: Statements 1 and 2 are correct
Statements 1 and 2 are correct: The nitrogenous bases in RNA are adenine, guanine, cytosine, and uracil, which replacec thymine in DNA.
Statement 3 is incorrect: The RNA works as a messenger between ribosome and the DNA (not the vice-versa).
