166391
The sequence that controls the copy number of the linked DNA in the vector, is termed
1 Ori site
2 Palindromic sequence
3 Recognition site
4 Selectable marker
Explanation:
Exp . A The sequence that controls the copy number of linked DNA in the vector is the ori site. - Ori site or "origin of replication" is a sequence from which replication starts. - So, it controls how many times gene of interest will be produced in the host cell.
NEET-2020 Phase-I
Molecular Basis of Inheritance and
166392
Name the enzyme that facilitates opening of DNA helix during transcription.
1 DNA helicase
2 DNA polymerase
3 RNA polymerase
4 DNA ligase
Explanation:
RNA polymerase holoenzyme binds to the promoter, unwinds DNA (open complex) and form phosphodiester links between the initiating nucleotides. - DNA polymerase, DNA ligase and DNA helicase are involved in the process of replication and not transcription. - RNA polymerase facilities opening of DNA helix during transcription.
NEET-2020 Phase-I
Molecular Basis of Inheritance and
166397
What initiation and termination factors are involved in transcription in Eukaryotes?
1 \(\alpha\) and \(\sigma\), respectively
2 \(\sigma\) and \(\rho\), respectively
3 \(\alpha\) and \(\beta\), respectively
4 \(\beta\) and \(\gamma\), respectively
Explanation:
Sigma( \(\sigma\) )factor is responsible for initiation of transcription. - Rho ( \(\rho\) ) factor is responsible for termination of transcription. - Eukaryotes require transcription factors to first bind to the promoter region and then help recruit the appropriate polymerase.
NEET (Odisha)-2019
Molecular Basis of Inheritance and
166402
Which of the following reunites the exon segments after RNA splicing . -
1 RNA polymerase
2 RNA primase
3 RNA ligase
4 RNA proteases
Explanation:
DNA ligase is capable of catalyzing the formation of the phosphodiester bond that seals the nick of two DNA fragments. Primase is an RNA polymerase that is used to initiate DNA Synthesis. RNA ligase reunites the exon segment after RNA splicing.
166391
The sequence that controls the copy number of the linked DNA in the vector, is termed
1 Ori site
2 Palindromic sequence
3 Recognition site
4 Selectable marker
Explanation:
Exp . A The sequence that controls the copy number of linked DNA in the vector is the ori site. - Ori site or "origin of replication" is a sequence from which replication starts. - So, it controls how many times gene of interest will be produced in the host cell.
NEET-2020 Phase-I
Molecular Basis of Inheritance and
166392
Name the enzyme that facilitates opening of DNA helix during transcription.
1 DNA helicase
2 DNA polymerase
3 RNA polymerase
4 DNA ligase
Explanation:
RNA polymerase holoenzyme binds to the promoter, unwinds DNA (open complex) and form phosphodiester links between the initiating nucleotides. - DNA polymerase, DNA ligase and DNA helicase are involved in the process of replication and not transcription. - RNA polymerase facilities opening of DNA helix during transcription.
NEET-2020 Phase-I
Molecular Basis of Inheritance and
166397
What initiation and termination factors are involved in transcription in Eukaryotes?
1 \(\alpha\) and \(\sigma\), respectively
2 \(\sigma\) and \(\rho\), respectively
3 \(\alpha\) and \(\beta\), respectively
4 \(\beta\) and \(\gamma\), respectively
Explanation:
Sigma( \(\sigma\) )factor is responsible for initiation of transcription. - Rho ( \(\rho\) ) factor is responsible for termination of transcription. - Eukaryotes require transcription factors to first bind to the promoter region and then help recruit the appropriate polymerase.
NEET (Odisha)-2019
Molecular Basis of Inheritance and
166402
Which of the following reunites the exon segments after RNA splicing . -
1 RNA polymerase
2 RNA primase
3 RNA ligase
4 RNA proteases
Explanation:
DNA ligase is capable of catalyzing the formation of the phosphodiester bond that seals the nick of two DNA fragments. Primase is an RNA polymerase that is used to initiate DNA Synthesis. RNA ligase reunites the exon segment after RNA splicing.
166391
The sequence that controls the copy number of the linked DNA in the vector, is termed
1 Ori site
2 Palindromic sequence
3 Recognition site
4 Selectable marker
Explanation:
Exp . A The sequence that controls the copy number of linked DNA in the vector is the ori site. - Ori site or "origin of replication" is a sequence from which replication starts. - So, it controls how many times gene of interest will be produced in the host cell.
NEET-2020 Phase-I
Molecular Basis of Inheritance and
166392
Name the enzyme that facilitates opening of DNA helix during transcription.
1 DNA helicase
2 DNA polymerase
3 RNA polymerase
4 DNA ligase
Explanation:
RNA polymerase holoenzyme binds to the promoter, unwinds DNA (open complex) and form phosphodiester links between the initiating nucleotides. - DNA polymerase, DNA ligase and DNA helicase are involved in the process of replication and not transcription. - RNA polymerase facilities opening of DNA helix during transcription.
NEET-2020 Phase-I
Molecular Basis of Inheritance and
166397
What initiation and termination factors are involved in transcription in Eukaryotes?
1 \(\alpha\) and \(\sigma\), respectively
2 \(\sigma\) and \(\rho\), respectively
3 \(\alpha\) and \(\beta\), respectively
4 \(\beta\) and \(\gamma\), respectively
Explanation:
Sigma( \(\sigma\) )factor is responsible for initiation of transcription. - Rho ( \(\rho\) ) factor is responsible for termination of transcription. - Eukaryotes require transcription factors to first bind to the promoter region and then help recruit the appropriate polymerase.
NEET (Odisha)-2019
Molecular Basis of Inheritance and
166402
Which of the following reunites the exon segments after RNA splicing . -
1 RNA polymerase
2 RNA primase
3 RNA ligase
4 RNA proteases
Explanation:
DNA ligase is capable of catalyzing the formation of the phosphodiester bond that seals the nick of two DNA fragments. Primase is an RNA polymerase that is used to initiate DNA Synthesis. RNA ligase reunites the exon segment after RNA splicing.
166391
The sequence that controls the copy number of the linked DNA in the vector, is termed
1 Ori site
2 Palindromic sequence
3 Recognition site
4 Selectable marker
Explanation:
Exp . A The sequence that controls the copy number of linked DNA in the vector is the ori site. - Ori site or "origin of replication" is a sequence from which replication starts. - So, it controls how many times gene of interest will be produced in the host cell.
NEET-2020 Phase-I
Molecular Basis of Inheritance and
166392
Name the enzyme that facilitates opening of DNA helix during transcription.
1 DNA helicase
2 DNA polymerase
3 RNA polymerase
4 DNA ligase
Explanation:
RNA polymerase holoenzyme binds to the promoter, unwinds DNA (open complex) and form phosphodiester links between the initiating nucleotides. - DNA polymerase, DNA ligase and DNA helicase are involved in the process of replication and not transcription. - RNA polymerase facilities opening of DNA helix during transcription.
NEET-2020 Phase-I
Molecular Basis of Inheritance and
166397
What initiation and termination factors are involved in transcription in Eukaryotes?
1 \(\alpha\) and \(\sigma\), respectively
2 \(\sigma\) and \(\rho\), respectively
3 \(\alpha\) and \(\beta\), respectively
4 \(\beta\) and \(\gamma\), respectively
Explanation:
Sigma( \(\sigma\) )factor is responsible for initiation of transcription. - Rho ( \(\rho\) ) factor is responsible for termination of transcription. - Eukaryotes require transcription factors to first bind to the promoter region and then help recruit the appropriate polymerase.
NEET (Odisha)-2019
Molecular Basis of Inheritance and
166402
Which of the following reunites the exon segments after RNA splicing . -
1 RNA polymerase
2 RNA primase
3 RNA ligase
4 RNA proteases
Explanation:
DNA ligase is capable of catalyzing the formation of the phosphodiester bond that seals the nick of two DNA fragments. Primase is an RNA polymerase that is used to initiate DNA Synthesis. RNA ligase reunites the exon segment after RNA splicing.
