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Uracil is present in RNA at the place of...

Uracil is present in RNA at the place of :

A

Adenine

B

Guanine

C

Cytosine

D

Thymine

Text Solution

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Nucleic Acids**: Recognize that both DNA and RNA are types of nucleic acids, which are polymers made up of nucleotides. 2. **Components of Nucleotides**: Identify the three main components of nucleotides: a sugar, a phosphate group, and a nitrogenous base. 3. **Types of Nitrogenous Bases**: Learn that there are two categories of nitrogenous bases: purines and pyrimidines. Purines include adenine (A) and guanine (G), while pyrimidines include cytosine (C), uracil (U), and thymine (T). 4. **Base Pairing in DNA**: In DNA, adenine pairs with thymine (A-T) through hydrogen bonds, and guanine pairs with cytosine (G-C) through triple hydrogen bonds. 5. **Base Pairing in RNA**: In RNA, adenine pairs with uracil (A-U) through double hydrogen bonds, and guanine pairs with cytosine (G-C) through triple hydrogen bonds. 6. **Conclusion**: Since uracil (U) is present in RNA in place of thymine (T), the answer to the question is that uracil is present in RNA at the place of thymine. **Final Answer**: Uracil is present in RNA at the place of thymine. ---
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Explore conceptually related problems

Read the following five statements (A to E) about nucleic acids and select the option with all correct statements: (A) DNA is a long polymer of deoxyribonucleotides. (B) The two chains of DNA have anti-parallel polarity. (C) The backbone in a polynucleotide chain is formed due to nitrogenous bases and phosphates. (D) DNA acts as the genetic material in most of the organisms. (E) Uracil is present in RNA at the place of cytosine.

Assertion (A): place of thymine. In RNA uracil is present at the place of thymine. Reason (R): 5-methyl uracil is chemical name of thymine.

Assertion: The pyrimidine base uracil is present in RNA. Reason: RNA controls the synthesis of proteins

Assertion: Uracil is present in DNA. Reason : DNA undergoes replication.

Which of the following bases is prisent in RNA in place of thymine

Uridine, present only in RNA is

Assertion: Purine bases present in DNA are adenine and guanine. Reason: The base thymine is present in RNA while base uracil is present in DNA.