Question

Once researchers identified DNA as the unit of inheritance, they asked how information was transferred from the DNA in the nucleus to the site of protein synthesis in the cytoplasm. What is the mechanism of information transfer in eukarotes? Transfer RNA takes information from DNA directly to a ribosome, where protein synthesis takes place. DNA from a single gene is replicated and transferred to the cytoplasm, where it serves as a template for protein synthesis. Proteins transfer information from the nucleus to the ribosome, where protein synthesis takes place. Messenger RNA is transcribed from a single gene and transfers information from the DNA in the nucleus to the cytoplasm, where protein synthesis takes place. QUESTION 13 Which of the following best describes the significance of the TATA box in eukaryotic promoters? It sets the reading frame of the mRNA. It is the recognition site for a specific transcription factor. It is the recognition site for ribosomal binding. Its significance has not yet been determined.

Answer 1

QUESTION 12

In this case, the process of protein expression involves the transcription of a determined gene from the DNA into a messenger RNA. This mRNA is then translocated to the cytoplasm and it is translated into a protein in the ribosome. So, the correct answer is Messenger RNA is transcribed from a single gene and transfers information from the DNA in the nucleus to the cytoplasm, where protein synthesis takes place

QUESTION 13

Remember that the TATA box is DNA sequence located at the promoter region of all genes. This sequence is recognized by transcription factors and histones. So, the correct answer is it is the recognition site for a specific transcription factor