Choose all that apply regarding gene transcription in eukaryotes: Exons are removed from mRNA by the spliceosome. RNA polymerase II must completely finish an mRNA transcript before processing can begin. RNA polymerase I catalyzes the synthesis of the majority of ribosomal RNA. Histone acetylation is a method of controlling gene expression. Acetylation creates more positive charges on histones, leading to tighter binding of the proteins to DNA. Introns must be removed from the initial RNA transcript. The hormone 17beta-estradiol binds to a G-protein coupled receptor to control gene transcription. The 5' cap of mRNA requires the free triphosphate on the nucleotide at the 5' end. Multiple transcription factors are necessary to form the pre-initiation complex (PIC) of RNA Pol II.

Choose all that apply regarding gene transcription in eukaryotes: Exons are removed from mRNA by the spliceosome. RNA polymerase II must completely finish an mRNA transcript before processing can begin. RNA polymerase I catalyzes the synthesis of the majority of ribosomal RNA. Histone acetylation is a method of controlling gene expression. Acetylation creates more positive charges on histones, leading to tighter binding of the proteins to DNA. Introns must be removed from the initial RNA transcript. The hormone 17beta-estradiol binds to a G-protein coupled receptor to control gene transcription. The 5' cap of mRNA requires the free triphosphate on the nucleotide at the 5' end. Multiple transcription factors are necessary to form the pre-initiation complex (PIC) of RNA Pol II.

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter9: Gene Expression And Gene Regulation

Section: Chapter Questions

Problem 11QP: Briefly describe the function of the following in protein synthesis. a. rRNA b. tRNA c. mRNA

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Consider gene expression in a eukaryotic cell. Which of the following is true for transcription in this cell? Select all that apply. MRNA has to be processed before leaving the nucleus MRNA can be synthesized by Transcription and at the same time this mRNA can be used for protein synthesis or Translation RNA polymerase requires several transcription factors for efficient transcription initiation During Transcription, the enzyme topoisomerase relaxes negative supercoiling in the DNA strands
Select all TRUE statements related to the process of transcription. More than one answer is possible. The enzyme helicase separates the complimentary base pairs that hold double-stranded DNA together. MRNA is formed by joining ribonucleotides that pair with the template strand of DNA MRNA is formed by joining ribonucleotides that pair with the coding strand of DNA exons are removed from MRNA. Okazaki fragments form on the lagging strand. introns are removed from mRNA. The enzyme DNA gyrase encompasses both strands of DNA and uncoils the helix of double-stranded DNA. transcription is the process by which MRNA codons are translated to proteins. MRNA formed will be complimentary to the coding strand. DNA is unwound to expose the targeted gene
Unlike in prokaryotic cells, transcription and translation in eukaryotic cells... Group of answer choices are separated: transcription occurs in the cytoplasm, and translation occurs in the nucleus. occur together in the cytosol. occur together in the nucleus. are separated, except for proteins that bind to the DNA and ribosomes, which are translated in the nucleus. are separated: transcription occurs in the nucleus, and translation occurs in the cytoplasm.
Indicate which of the following items are associated with transcription or translation. This could be in prokaryotes or eukaryotes, or both. Group of answer choices: Translation OR Transcription Sigma binds to the promoter mRNA binds to the small ribosomal subunit Spliceosomes remove introns and splice together exons Nucleotides are added from the 5' to 3' end tRNA anticodon binds to the corresponding mRNA codon STOP codon results in termination
In eukaryotes, which of the following statements is correct with regard to introns and exons? Mature mRNA contains a mix of introns and exons Introns in DNA are removed by spliceosomes Failure to remove introns can lead to production of faulty protein Exons are repeating sequences typically found at the end of a gene Introns are transcribed from promoter sequence
How can transcription factors influence the transcription of DNA? Select all that apply. Inhibit transcription by preventing RNA polymerase from binding to promoters Inhibit translation by preventing the binding of mRNA to ribosomes Enhance transcription by helping RNA polymerase bind to promoters Inhibit transcription by blocking the progress of RNA polymerase along a DNA molecule
Match the term with its definition comparing genomic DNA, mRNA, and proteins. You may only use each option ONCE. where transcription starts. where translation ends a chemical group that indicates the first nucleotide that was added to the mRNA a chemical group that indicates the first amino acid that was added to the polypeptide a DNA sequence that is neither transcribed nor translated a non-protein coding region upstream of the start codon in the mRNA promoter complimentary base-pairs with the codon amino-terminus a DNA sequence that is transcribed, but not intron translated [Choose ] stop codon +1 site tRNA 5-prime UTR start codon exon 5-prime triphosphate promoter amino-terminus 5-prime triphosphate stop codon
The information in DNA is used by cells to produce proteins that perform various functions in cells. The process of gene expression involves the transcription of a mRNA molecule that is translated by ribosomes into a strand of amino acids.1. Use your DNA strand to construct a part of a messenger RNA molecule.DNA: A G T A C C G G G C A A A C T G C A T T G T GmRNA:2. find it by searching the internet for the "Genetic Code Chart" to determine the sequence of amino acids in your polypeptide chain. Remember to START translation at the start codon by adding a Methionine and STOP translating when you reach a stop codon.
In protein synthesis, DNA transcription records the genetic message, while ribosomal ______________ interprets the message. ________________ carries the genetic code to the ribosomes to facilitate protein/amino acid synthesis. The genetic message to make a specific amino acid in a protein, is carried by a specific three nucleotide unit on the messenger RNA called a During transcription, the nitrogen base adenine on the DNA bonds with the nitrogen base ______________ on the messenger RNA. The enzyme __________________ unwinds the DNA double helix in DNA transcription.
Which of the following describes transcription factors? The addition or deletion of methyl and acetyl groups to regulate transcription Proteins that specifically bind to promoter or enhancer regions to initiate transcription The transcription initiation sites of DNA that bind RNA polymerase DNA regulatory elements that actively repress the transcription of a gene O Varying sequences that are or are not included in the instructions to make a protein
Which of the following is true only for eukaryotic gene expression? mRNA is synthesized in the 3' ---> 5' direction. Translation of mRNA routinely begins before transcription is complete. The mRNA transcript is the exact complement of the gene from which it was copied. After transcription, a 3' poly-A tail and a 5' cap are added to mRNA. RNA polymerase binds to the promoter region to begin transcription.
Match the steps of transcription and translation to the location they take place within a eukaryotic cell. RNA splicing [ Choose ] pairing of codons [ Choose ] and anticodons recognition of a [ Choose ] promoter gene construction of [ Choose ] an mRNA molecule formation of the [ Choose ] bond between amino acids