alleryDuring transcription, mRNA is synthesised using how many of the two strands of a DNA molecule?
ABoth strands
BOnly one strand
CNeither strand
DHalf of each strand
Answer & Solution
Correct answer: B. Only one strand
1. Transcription is the production of mRNA based on the nucleotide sequence of DNA.
2. Only one of the two DNA strands is used as the template.
3. The mRNA sequence formed is complementary to that single strand.
4. Hence only one strand is used.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology Part 2, Ch 1 "Heredity and Evolution", p.10_
Keep practising Heredity and Evolution
Browse all Heredity and Evolution questions for Andhra Pradesh SSC (Class 10), or explore more Science topics.
Related questions
Evolution is best defined as the change occurring in living organisms that takes place:Which genetic disorder is given as an example of a condition that can be caused by a mutatA sudden change in a gene, such as a nucleotide shifting its position, is known as a:The stepwise movement of the ribosome along mRNA by a distance of one triplet codon is terThe amino acids brought in by tRNA are joined together by peptide bonds with the help of wOn a tRNA molecule, the sequence that is complementary to the codon on mRNA is called the:Which Indian-origin scientist received the 1968 Nobel Prize for his work on triplet codonsHow many nucleotides make up the triplet codon that codes for a single amino acid?