Process of Transcription

Q. mRNA is synthesised on DNA template in which direction:

1. $5^{\prime }\to 3^{\prime }$
2. $3^{\prime }\to 5^{\prime }$
3. Both
4. Any

Q. Which is the "Only enzyme" that has "Capability" to catalyse initiation, elongation and termination in the process of transcription in prokaryotes?

Q.

Look at the following complementary sequences of a single DNA molecule, and identify the correct mRNA sequence that gets transcribed from it:

5’ TAGGCGCATT 3’

3’ ATCCGCGTAA 5’

1. 5’ UAGGCGCAUU 3’

2. 5’ TAGGCGCATT 3’

3. 3’ AUCCGCGUAA 5’

4. 3’ UAGGCGCAUU 5’

Q. A segment of DNA with the following sequence AGCTGACTATGAT is a template strand for RNA synthesis. What will be the complementary base sequence in the mRNA formed?

1. AGCUGACUAUGAU
2. UCGUCUGAUACUA

3. AGCTGACTATGAT

4. UCGACUGAUACUA

Q. Choose the wrong statement in the process of protein synthesis.

1. After uncoiling of DNA molecule, one strand acts as a template for the formation of mRNA
2. In the presence of DNA polymerase enzyme, the mRNA is formed based on the triplet codes
3. The mRNA that leaves nucleus reached cytoplasm and gets attached with 30S ribosomal subunit
4. The amino acids are transferred from the intracellular amino acid pool to the active ribosomes by the tRNA
5. Translation is the process, in which proteins are synthesised from the RNA