Which of the following is the best description of a transcription factor? A. A protein that brings the correct nucleotides to RNA polymerase B. A protein that binds to specific DNA sequences C. A DNA sequence that binds to RNA polymerase D. A modification that is made to mRNA to help it be exported from the nucleus. .

Q: If a mutation deletes the start codon in a eukrayotic gene, which of the following most accurately…

A: The start codon is a three-nucleotide long sequence in a gene that is responsible for the initiation…

Q: Eukaryotic cells use which of the following to initiate transcription?   a. Sigma proteins   b.…

A: Transcription of the process of formation of a sequence of RNA using DNA as a template.

Q: Which of the following statements about the transcription process is correct?

A: The flow of genetic information from DNA to RNA, RNA to protein synthesis is called central dogma.…

Q: What types of changes take place in rRNA processing? a. Methylation of bases b. Cleavage of a larger…

A: Ribonucleic acid (RNA) is a polymeric molecule essential in various biological roles in decoding,…

Q: Can one transcription factor sometimes act as a repressor and sometimes act as an activator? a. Yes,…

A: Transcription factors are proteins that bind to neighbouring DNA and help switch particular genes…

Q: Why is regulating transcription the main way that cells control gene expression?     A. Because…

A: Transcription is the process in which RNA is synthesized with the help of RNA polymerase enzyme. RNA…

Q: Select the most complete list of correct structures involved in the process of transcription…

A: Transcription is a process involved in the expression of a gene that takes place in the nucleus of a…

Q: onsense mutations occur when:  A.The new codon causes an incorrect amino acid to code for an…

A: A mutation is a mistake within the deoxyribonucleic acid sequence of an associate organism.…

Q: How does the Trp operon work? A. Binding of Trp to a repressor protein allows the repressor to bind…

A: Trp operon is the cluster of genes that are responsible for synthesis pf operon

Q: Describe the signaling pathway used by a small hydrophobic ligand (like a steroid) to cause a change…

A: A small hydrophobic ligand is a type of signaling molecule that is hydrophobic or nonpolar in…

Q: Post-translational modifications of proteins can affect which of the following? a. protein function…

A: When RNA has been transported to the cytoplasm, it is being translated into protein whose control is…

Q: A particular gene is transcribed in the liver and pancreas cells, but not in other organs. Explain…

A: Transcription It refers to the process of transcribing the sequences of DNA into the sequences of…

Q: What is the central component of a transcription initiation complex?   a.   DNA polymerase…

A: Transcription is the process by which RNA is produced from the DNA template. This process is occurs…

Q: Genes of related function frequently cluster into: please explain the answer  a.transcripts…

A: Gene is the functional part of the DNA that undergoes transcription and produce RNA. They have a…

Q: Which of the following is the action of SnRNA (snurps)? a. Knocks out a portion of the gene b.…

A: Splicesomes are large protein-RNA complexes in eukaryotes which undertakes the process of splicing.…

Q: The epigenome for a particular gene determines whether it will

A: When certain chemical compounds or proteins are attached externally to the genome or the DNA, such…

Q: What are the three phases of creating pre-mRNA? a. Initiation, Elongation and Termination b.…

A: Pre-mRNA, also known as precursor messenger RNA, is the first RNA molecule transcribed from a DNA…

Q: Assembly of transcription initiation complexes is mainly controlled by

A: Assembly of transcription initiation complex is a process of bringing together all the components…

Q: You are comparing the proteins expressed in two different human cells: a liver cell and a muscle…

A: Proteins are cellular macromolecules made up of amino acid polymers (polypeptides). The sequence of…

Q: What is the direction of the growth of newly synthesized RNA chain during transcription?   options:…

A: The first step of gene expression is transcription. A protein subunit or a polypeptide making…

Q: Which of the following order of events correctly depicts the Central Dogma as it would occur in an…

A: The Central Dogma of molecular biology, first proposed by Francis Crick in 1958, represents the flow…

Q: Which of the following is NOT true about mutations?   A. Mutations can be harmful but not…

A: Mutations are defined as any heritable change in the genetic makeup of an organism. It is a sudden…

Q: What is one function of TFIIH during transcription?    a. Recruiting the TATA-box binding protein…

A: Transcription factor II Human is a crucial protein complex which have important role in…

Q: During gene expression, which information flows in the correct order?   A. RNA --> Transcription-->…

A: Genes are the basic structural and functional unit of heredity. They carry coded genetic information…

Gene Interactions

When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.

Gene Expression

Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.