Question
Easy
Solving time: 2 mins
A region of a coding DNA strand has the following nucleotide sequence :
-ATGC-
What shall be the nucleotide sequence in (i) sister DNA segment it replicates, and (ii) m-RNA polynucleotide it transcribes ?
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Text solutionVerified
The basic DNA replication is by semi conservative model, where strand in the double helix acts as a template for the synthesis of a new, complementary strand. Helix structure separates and H bond breaks. Replication produces 2 identical DNA, Each with one new and old strand.
(i) - A T G C – (DNA replication) - T A C G –
(ii) - A T G C – (Transcription) - U A C G –
Transcription is the process where the information in a strand of DNA is copied into a new molecule of messenger RNA. Information from a gene is used to produce outcome such as a protein. One codon (three nucleotides) from the transcribe band represent one amino acid.
(i) - A T G C – (DNA replication) - T A C G –
(ii) - A T G C – (Transcription) - U A C G –
Transcription is the process where the information in a strand of DNA is copied into a new molecule of messenger RNA. Information from a gene is used to produce outcome such as a protein. One codon (three nucleotides) from the transcribe band represent one amino acid.
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Question Text | A region of a coding DNA strand has the following nucleotide sequence : -ATGC- What shall be the nucleotide sequence in (i) sister DNA segment it replicates, and (ii) m-RNA polynucleotide it transcribes ? |
Topic | Molecular Basis of Inheritance |
Subject | Biology |
Class | Class 12 |
Answer Type | Text solution:1 |
Upvotes | 85 |