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2021-05-15

What is the difference between the core promoter and promoter proximal regulatory elements See Section 19.3 page?

What is the difference between the core promoter and promoter proximal regulatory elements See Section 19.3 page?

See Section 19.3 (Page 385) . The core promoter is the site for binding of proteins required for transcribing all genes, such as TATA-binding protein and RNA polymerase, but the promoter-proximal elements are unique to sets of genes that are regulated together.

What is the difference between the core promoter and promoter proximal regulatory elements See Section 19.3 page 385?

Core promoter refers to specific sequences which RNA polymerase binds to. Promoter proximal regulatory elements refers to sequences which allow eukaryotic cells to express certain genes only while repressing others.

What type of mutation would be created by changing the codon specifying sequence?

A mutation causing the complete disruption of the function of the protein is called as null mutation. A point mutation that changes a codon specifying a different amino acid is called as missence mutation.

What does the codon sequence on the mRNA Strand determine quizlet?

A sequence of 3 nucleotides in the mRNA (the codon) determines the amino acid that will be added to a protein. Therefore, the sequence of nucleotides in the DNA determines the sequence of nucleotides in the mRNA, and this sequence determines the order of amino acids in the resulting protein.

What is the importance of sequence of codons in the mRNA?

Each group of three bases in mRNA constitutes a codon, and each codon specifies a particular amino acid (hence, it is a triplet code). The mRNA sequence is thus used as a template to assemble—in order—the chain of amino acids that form a protein.

What is the process of synthesizing mRNA called?

The process of making mRNA from DNA is called transcription, and it occurs in the nucleus. The message is encoded in the nucleotide sequence of the mRNA, which is complementary to the nucleotide sequence of the DNA that served as a template for synthesizing the mRNA. Making proteins from mRNA is called translation.

Is DNA replication part of protein synthesis?

The main difference between protein synthesis and DNA replication is that the protein synthesis is the production of a functional protein molecule based on the information in the genes whereas DNA replication is the production of an exact replica of an existing DNA molecule.

What are the similarities and differences between DNA replication & protein synthesis?

Protein synthesis makes proteins, while DNA replication makes DNA . DNA replication occurs in the nucleus and produces two identical sets of DNA. Protein syntheses produces mRNA, which is then translated by tRNA molecules carrying amino acids to produce a polypeptide or protein.

What is a major difference between DNA replication and DNA transcription?

Both DNA replication and Transcription involve the generation of a new copy of the DNA in a cell. DNA transcription is involved in replicating the DNA into RNA, while the DNA replication makes another copy of DNA. Both the process is involved in the production of new nucleic acids- DNA or RNA.

What is the difference between DNA replication and translation?

Differences. DNA replication occurs in preparation for cell division, while transcription happens in preparation for protein translation. DNA replication is important for properly regulating the growth and division of cells. Transcription only occurs when a gene is turned on