Home
Class 12
BIOLOGY
In RNA, the thymine is replaced by :...

In RNA, the thymine is replaced by `:`

A

adenine

B

guanine

C

cytosine

D

Uracil

Text Solution

AI Generated Solution

The correct Answer is:
### Step-by-Step Solution: 1. **Understanding the Question**: The question asks what thymine (T) is replaced by in RNA. In DNA, thymine is one of the four nitrogenous bases. 2. **Identifying the Bases in DNA and RNA**: DNA contains four bases: adenine (A), thymine (T), cytosine (C), and guanine (G). RNA, on the other hand, contains adenine (A), uracil (U), cytosine (C), and guanine (G). 3. **Recognizing the Replacement**: When DNA is transcribed into RNA during the process of transcription, thymine (T) in the DNA is replaced by uracil (U) in the RNA. 4. **Transcription Process**: During transcription, the DNA strand is used as a template to synthesize mRNA. The base pairing rules apply: - Adenine (A) pairs with uracil (U) in RNA instead of thymine (T). - Cytosine (C) pairs with guanine (G), and vice versa. 5. **Conclusion**: Therefore, in RNA, thymine (T) is replaced by uracil (U). ### Final Answer: In RNA, thymine is replaced by uracil (U). ---
### Step-by-Step Solution: 1. **Understanding the Question**: The question asks what thymine (T) is replaced by in RNA. In DNA, thymine is one of the four nitrogenous bases. 2. **Identifying the Bases in DNA and RNA**: DNA contains four bases: adenine (A), thymine (T), cytosine (C), and guanine (G). RNA, on the other hand, contains adenine (A), uracil (U), cytosine (C), and guanine (G). 3. **Recognizing the Replacement**: When DNA is transcribed into RNA during the process of transcription, thymine (T) in the DNA is replaced by uracil (U) in the RNA. ...
Promotional Banner

Similar Questions

Explore conceptually related problems

In RNA, thymine is replaced by

In t-RNA

RNA is

Observe the following messenger RNA : Due to a mutation , the guanine nucleotide in the sixth position is replaced by an adenine nucleotide. What will be the correct effect on the sequence of amino acids due to this mutation ?

In RNA, Nucleotides are bonded by-

RNA synthesis is controlled by-

Assertion :- The DNA strand which does not code for nothing is referred to as coding stand. Reason : Coding strand sequence are same as RNA except thymine at the place of uracil.

XNA is a laboratory - made nucleic acid made of nucleotides in which one component has been replaced by chemical X. The chemical X is not found in nature. The part of the molecule responsible for coding is not changed . Which organic component of a DNA or RNA nucleotide has been replaced by X ?

RNA primer is removed by

sc RNA is