NEET · BiologyEasy
Which nitrogenous base is found in RNA but not in DNA?
- A.Adenine
- B.Guanine
- C.Uracil
- D.Cytosine
Show correct answer & step-by-step solution
Correct answer: C — Uracil
Solution
- DNA contains the nitrogenous bases adenine, guanine, cytosine, and thymine.
- RNA contains the nitrogenous bases adenine, guanine, cytosine, and uracil.
- Uracil replaces thymine in the RNA molecule.
- Hence the answer is (C).
Attempt this question & track your score
Sign up free to answer, get instant scoring, and let SolveGini track which Biology topics you need to revise.
Attempt & Track Free →More Molecular Genetics practice questions
- The process of copying genetic information from one strand of DNA into RNA is called:
- The start codon for protein synthesis in most organisms is:
- Which enzyme is primarily responsible for DNA replication in prokaryotes?
- In the DNA double helix, the two strands are held together by which type of bonds?
- If the sequence of the coding strand of a gene is 5'-ATGCATGC-3', what will be the sequence of the corresponding mRNA?
- In the lac operon, the repressor protein binds to which of the following sites to inhibit transcription?
- In a DNA molecule, the total amount of purine nucleotides is 40 percent. What is the percentage of cytosine in this DNA
- During the process of translation in prokaryotes, which of the following events occurs immediately after the formation o
- In a hypothetical organism, the DNA polymerase III enzyme has a mutation that increases its error rate to 1 in 1000 nucl
- In the lac operon, if a mutation occurs in the operator region such that the repressor protein can no longer bind, what
- A segment of double-stranded DNA contains 20 percent Adenine. What is the percentage of Cytosine in this DNA molecule?
- Which of the following statements correctly describes the role of the Rho protein in bacterial transcription termination