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Yes, cDNA does not have a promoter region because it is synthesized from mRNA and lacks the regulatory elements found in genomic DNA.

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Can clones isolated from cDNA libraries contain promoter sequences?

No, clones isolated from cDNA libraries do not contain promoter sequences because the cDNA synthesis process does not retain regulatory elements such as promoters. cDNA is made from mature mRNA and lacks the non-coding regions found in genomic DNA, including promoters. Therefore, clones isolated from cDNA libraries do not include promoter sequences.


Where does transcription start in a prokaryotic promoter?

Transcription in a prokaryotic promoter starts at the DNA sequence called the "promoter region."


What is the region where RNA polymerase binds on DNA?

RNA polymerase binds to the promoter region of DNA to initiate transcription. The promoter region contains specific nucleotide sequences that help RNA polymerase recognize where to start transcribing the gene.


How is a promoter region different from an operator region?

A promoter region is different from an operator region in the sense that the operator region is where DNA binds, whereas the promoter region is the binding site for the RNA polymerase. These two different regions are essentially opposites.


Which of the following statements best describes the promoter of a protein coding gene?

The promoter of a protein-coding gene is a region of DNA located at the beginning of the gene that initiates transcription by providing a binding site for RNA polymerase. It plays a critical role in controlling gene expression by regulating when and how much of the gene is transcribed into mRNA.

Related Questions

Can clones isolated from cDNA libraries contain promoter sequences?

No, clones isolated from cDNA libraries do not contain promoter sequences because the cDNA synthesis process does not retain regulatory elements such as promoters. cDNA is made from mature mRNA and lacks the non-coding regions found in genomic DNA, including promoters. Therefore, clones isolated from cDNA libraries do not include promoter sequences.


What is the advantage of using cDNA library in molecular genetics?

The main advantage of cDNA library is that it contains only the coding region of a genome.


What is the region of DNA where RNA synthesis begins called?

The region of DNA where RNA synthesis begins is the promoter. DNA contains a number of upstream regulatory and promoter sequences but the region of DNA where RNA synthesis begins is the start codon. This is the first codon that translates into an RNA nucleotide.


Where does transcription start in a prokaryotic promoter?

Transcription in a prokaryotic promoter starts at the DNA sequence called the "promoter region."


What is the region where RNA polymerase binds on DNA?

RNA polymerase binds to the promoter region of DNA to initiate transcription. The promoter region contains specific nucleotide sequences that help RNA polymerase recognize where to start transcribing the gene.


How is a promoter region different from an operator region?

A promoter region is different from an operator region in the sense that the operator region is where DNA binds, whereas the promoter region is the binding site for the RNA polymerase. These two different regions are essentially opposites.


Which of the statements best describes the promoter of a protein-coding gene?

The promoter is a nontranscribed region of a gene.


What is the region of DNA to which RNA polymerase bind?

promoter


Which of the following statements best describes the promoter of a protein coding gene?

The promoter of a protein-coding gene is a region of DNA located at the beginning of the gene that initiates transcription by providing a binding site for RNA polymerase. It plays a critical role in controlling gene expression by regulating when and how much of the gene is transcribed into mRNA.


Does a promoter determine whether a gene is expressed?

Yes, a promoter is a region of DNA located at the beginning of a gene that initiates the process of transcription, which is the first step in gene expression. The presence of specific sequences in the promoter region can influence the rate and level of gene expression.


Does a cloning vector contain promoter region?

Yes, a cloning vector can contain a promoter region. A promoter is a DNA sequence that initiates transcription of a particular gene, so cloning vectors can include a promoter to drive the expression of the inserted gene in the host organism.


Transcription starts at a region of DNA called a?

According to biologists, transcription starts at a region of DNA called a promoter. Promoters bind with RNA molecules to initiate transcription.