Home
Class 12
CHEMISTRY
The backbone of a nucleotide strand cont...

The backbone of a nucleotide strand contains the following sequence of arrangement

A

Base - Sugar

B

Sugar - Phosphate

C

Base - Phosphate

D

`"Base"_(1) - "Base"_(2)`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the backbone of a nucleotide strand, we need to understand the structure of a nucleotide and how its components are arranged. ### Step-by-Step Solution: 1. **Identify the Components of a Nucleotide**: A nucleotide consists of three main components: - A nitrogenous base (which can be a purine or pyrimidine) - A pentose sugar (either ribose in RNA or deoxyribose in DNA) - A phosphate group 2. **Understand the Arrangement**: In a nucleotide strand, the backbone is formed by the sugar and phosphate groups. The nitrogenous bases are attached to the sugar but do not form part of the backbone. 3. **Sugar-Phosphate Backbone**: The backbone of the nucleotide strand is specifically made up of alternating sugar and phosphate groups. The phosphate group of one nucleotide links to the sugar of the next nucleotide, creating a continuous chain. 4. **Conclusion**: Therefore, the correct sequence of arrangement for the backbone of a nucleotide strand is the sugar-phosphate linkage. ### Final Answer: The backbone of a nucleotide strand contains a sugar-phosphate arrangement. ---
Promotional Banner

Similar Questions

Explore conceptually related problems

What forms the backbone of a polynucleotide strand of a nucleic acid?

The number of nucleotides present in the restriction sequence of the first restriction endonuclease is

Identify giving reasons, the salient features of genetic code by studying the following nucleotide sequence of mRNA strand and the polypeptide chain translated from it. AUG UUU UCU UUU UUU UCU UAG Met- Phe- Ser- Phe- Phe- Ser.

Read the sequence of the nucleotides in the given segment of mRNA and the respective amino acid sequence in the polypeptide chain. Polypeptide: met-phe-met-pro-val-ser Write the nucleotide sequence of the DNA strand from which this mRNA was transcribed.

Which of these statements about protein synthesis are NOT correct ? I. During transcription, mRNA synthesized from DNA nucleotides to have the same sequence of nucleotides as the DNA strand on which it was made. II. During transcription , tRNA is synthesized from RNA nucleotides and carries codons that are complementary to the sequence of nucleotides on the DNA strand on which it was made. III. During translation, mRNA is synthesized from RNA nucleotides to have the complementary sequence of nucleotides to that. Of the DNA strand on which it was made . IV. During translation ribosomes move on mRNA from '5' and '3' one codon at a time .This is called translocation

If the sequence of bases in one strand of DNA is ATGACTGTC then the sequence of bases in its complementary strands is:

If the sequence of bases in coding strand of DNA is ATTCGATC, then the sequence of bases in mRNA will be

Backbone of DNA strand is built up of

If the sequence of bases in one strand of DNA is known then the sequence in other strand can be predicted on the basis of -

Which of the following is not a part of a nucleotide?