166369
Certain RNA viruses carry a gene for an enzyme that uses viral RNA as a template in the synthesis of DNA. This enzyme is
1 viral nuclease
2 RNA replicase
3 RNA polymerase
4 reverse transcriptase
Explanation:
A reverse trancriptase is an enzyme used to formation of ds DNA from an RNA template. - Reverse transcriptase enzymes can be found in viruses, which use reverse transcriptase to make more viruses.
AMU-2002
Molecular Basis of Inheritance and
166374
In an E. Coli strain \(i\) gene gets mutated and its product can not bind the inducer molecule. If growth medium is provided with lactose, what will be the outcome?
1 RNA polymerase will bind the promoter region
2 Only \(z\) gene will get transcribed
3 \(z, y, a\) genes will be transcribed
4 \(z, y, a\) genes will not be translated
Explanation:
As the product of (i) gene binds with the operator region and blocks the transcription and translation of \(z, y\) and a genes. It's product is prevented from binding to the operator by attaching it with the inducer, as the inducer can now no more capable of binding with the repressor. This in all cases, operator always gets attached with the repressor there by preventing the transcription and transmission of \(z\), \(\mathrm{y}\) and a. Even in the presence of lactose, transcription and translation of Z, y and a would not occur.
NEET-2022
Molecular Basis of Inheritance and
166379
Sigma factor is related to:
1 RNA polymerase
2 DNA polymerase
3 both a and b
4 none of these
Explanation:
Sigma factor related to RNA polymerase. - RNA polymerase is a group of enzymes which catalyses the synthesis of RNA using the template DNA. - RNA polymerase is a holoenzyme that is represented as \(\left(\alpha_{2} \beta \beta^{\prime} \omega\right) \sigma\). - DNA polymerase is the enzyme that catalyses the synthesis of DNA molecules from nucleoside triphosphate the molecule precursor of DNA.
BVP-2005 / Haryana PMT-2004
Molecular Basis of Inheritance and
166380
DNA multiplication is called:
1 translation
2 transduction
3 transcription
4 replication
Explanation:
DNA replication is the process of formation of copies of own type DNA molecules. Hence DNA multiplication is also known as DNA replication. - Transduction is the transfer of the genetic material from one bacterium to another with the help of a virus. - Translation is process in which of the converting nucleic acid information in to amino acid.
166369
Certain RNA viruses carry a gene for an enzyme that uses viral RNA as a template in the synthesis of DNA. This enzyme is
1 viral nuclease
2 RNA replicase
3 RNA polymerase
4 reverse transcriptase
Explanation:
A reverse trancriptase is an enzyme used to formation of ds DNA from an RNA template. - Reverse transcriptase enzymes can be found in viruses, which use reverse transcriptase to make more viruses.
AMU-2002
Molecular Basis of Inheritance and
166374
In an E. Coli strain \(i\) gene gets mutated and its product can not bind the inducer molecule. If growth medium is provided with lactose, what will be the outcome?
1 RNA polymerase will bind the promoter region
2 Only \(z\) gene will get transcribed
3 \(z, y, a\) genes will be transcribed
4 \(z, y, a\) genes will not be translated
Explanation:
As the product of (i) gene binds with the operator region and blocks the transcription and translation of \(z, y\) and a genes. It's product is prevented from binding to the operator by attaching it with the inducer, as the inducer can now no more capable of binding with the repressor. This in all cases, operator always gets attached with the repressor there by preventing the transcription and transmission of \(z\), \(\mathrm{y}\) and a. Even in the presence of lactose, transcription and translation of Z, y and a would not occur.
NEET-2022
Molecular Basis of Inheritance and
166379
Sigma factor is related to:
1 RNA polymerase
2 DNA polymerase
3 both a and b
4 none of these
Explanation:
Sigma factor related to RNA polymerase. - RNA polymerase is a group of enzymes which catalyses the synthesis of RNA using the template DNA. - RNA polymerase is a holoenzyme that is represented as \(\left(\alpha_{2} \beta \beta^{\prime} \omega\right) \sigma\). - DNA polymerase is the enzyme that catalyses the synthesis of DNA molecules from nucleoside triphosphate the molecule precursor of DNA.
BVP-2005 / Haryana PMT-2004
Molecular Basis of Inheritance and
166380
DNA multiplication is called:
1 translation
2 transduction
3 transcription
4 replication
Explanation:
DNA replication is the process of formation of copies of own type DNA molecules. Hence DNA multiplication is also known as DNA replication. - Transduction is the transfer of the genetic material from one bacterium to another with the help of a virus. - Translation is process in which of the converting nucleic acid information in to amino acid.
166369
Certain RNA viruses carry a gene for an enzyme that uses viral RNA as a template in the synthesis of DNA. This enzyme is
1 viral nuclease
2 RNA replicase
3 RNA polymerase
4 reverse transcriptase
Explanation:
A reverse trancriptase is an enzyme used to formation of ds DNA from an RNA template. - Reverse transcriptase enzymes can be found in viruses, which use reverse transcriptase to make more viruses.
AMU-2002
Molecular Basis of Inheritance and
166374
In an E. Coli strain \(i\) gene gets mutated and its product can not bind the inducer molecule. If growth medium is provided with lactose, what will be the outcome?
1 RNA polymerase will bind the promoter region
2 Only \(z\) gene will get transcribed
3 \(z, y, a\) genes will be transcribed
4 \(z, y, a\) genes will not be translated
Explanation:
As the product of (i) gene binds with the operator region and blocks the transcription and translation of \(z, y\) and a genes. It's product is prevented from binding to the operator by attaching it with the inducer, as the inducer can now no more capable of binding with the repressor. This in all cases, operator always gets attached with the repressor there by preventing the transcription and transmission of \(z\), \(\mathrm{y}\) and a. Even in the presence of lactose, transcription and translation of Z, y and a would not occur.
NEET-2022
Molecular Basis of Inheritance and
166379
Sigma factor is related to:
1 RNA polymerase
2 DNA polymerase
3 both a and b
4 none of these
Explanation:
Sigma factor related to RNA polymerase. - RNA polymerase is a group of enzymes which catalyses the synthesis of RNA using the template DNA. - RNA polymerase is a holoenzyme that is represented as \(\left(\alpha_{2} \beta \beta^{\prime} \omega\right) \sigma\). - DNA polymerase is the enzyme that catalyses the synthesis of DNA molecules from nucleoside triphosphate the molecule precursor of DNA.
BVP-2005 / Haryana PMT-2004
Molecular Basis of Inheritance and
166380
DNA multiplication is called:
1 translation
2 transduction
3 transcription
4 replication
Explanation:
DNA replication is the process of formation of copies of own type DNA molecules. Hence DNA multiplication is also known as DNA replication. - Transduction is the transfer of the genetic material from one bacterium to another with the help of a virus. - Translation is process in which of the converting nucleic acid information in to amino acid.
166369
Certain RNA viruses carry a gene for an enzyme that uses viral RNA as a template in the synthesis of DNA. This enzyme is
1 viral nuclease
2 RNA replicase
3 RNA polymerase
4 reverse transcriptase
Explanation:
A reverse trancriptase is an enzyme used to formation of ds DNA from an RNA template. - Reverse transcriptase enzymes can be found in viruses, which use reverse transcriptase to make more viruses.
AMU-2002
Molecular Basis of Inheritance and
166374
In an E. Coli strain \(i\) gene gets mutated and its product can not bind the inducer molecule. If growth medium is provided with lactose, what will be the outcome?
1 RNA polymerase will bind the promoter region
2 Only \(z\) gene will get transcribed
3 \(z, y, a\) genes will be transcribed
4 \(z, y, a\) genes will not be translated
Explanation:
As the product of (i) gene binds with the operator region and blocks the transcription and translation of \(z, y\) and a genes. It's product is prevented from binding to the operator by attaching it with the inducer, as the inducer can now no more capable of binding with the repressor. This in all cases, operator always gets attached with the repressor there by preventing the transcription and transmission of \(z\), \(\mathrm{y}\) and a. Even in the presence of lactose, transcription and translation of Z, y and a would not occur.
NEET-2022
Molecular Basis of Inheritance and
166379
Sigma factor is related to:
1 RNA polymerase
2 DNA polymerase
3 both a and b
4 none of these
Explanation:
Sigma factor related to RNA polymerase. - RNA polymerase is a group of enzymes which catalyses the synthesis of RNA using the template DNA. - RNA polymerase is a holoenzyme that is represented as \(\left(\alpha_{2} \beta \beta^{\prime} \omega\right) \sigma\). - DNA polymerase is the enzyme that catalyses the synthesis of DNA molecules from nucleoside triphosphate the molecule precursor of DNA.
BVP-2005 / Haryana PMT-2004
Molecular Basis of Inheritance and
166380
DNA multiplication is called:
1 translation
2 transduction
3 transcription
4 replication
Explanation:
DNA replication is the process of formation of copies of own type DNA molecules. Hence DNA multiplication is also known as DNA replication. - Transduction is the transfer of the genetic material from one bacterium to another with the help of a virus. - Translation is process in which of the converting nucleic acid information in to amino acid.
