Choose the statement that correctly characterizes regulated and/or constitutive gene expression. Regulated expression refers to gene expression that is either on or off, depending on the physiological or metabolic status of the cell. Constitutive expression refers to gene expression that is either on or off, depending on the physiological or metabolic status of the cell. Constitutive expression refers to gene expression that is always repressed in response to the absence of required nutrients other metabolic molecules. Regulated expression refers to gene expression that is always on, regardless of the metabolic or physiological conditions in the cell. Regulated and constitutive expression are terms used to describe gene expression in prokaryotes only.

Q: What are the eight ways gene expression can be regulated? Please summarize each in one-two sentences

A: There must be some sort of regulation on how much mRNA is translated into proteins after the DNA is…

Q: Cancers are often caused by overactive growth factor receptor signaling (remember growth factor…

A: Cancer is a disease which is caused by the uncontrolled growth of the cells, without regulation of…

Q: Which of the following is TRUE about eukaryotic gene expression?

A: Eukaryotic Gene Expression is one of the most complex processes because every cell in the body had…

Q: Protein mutations that result in a hyperproliferative (sustained proliferative…

A: Protein mutations that lead to hyperproliferative cell phenotypes are often classified as oncogenic…

Q: Imagine you are a cell and you need to activate ("turn on") a gene as quickly as possible.  What…

A: Gene expression is a tightly regulated process that allows a cell to respond to its changing…

Q: Which of the following would you expect to happen if there were a mutation in the Iron Response…

A: Sequences of mRNA called called (IREs) are contained within the mRNA sequences that code for…

Q: Protein activity is controlled by multiple mechanisms in the cell. Briefly describe how this type of…

A: Biomolecules are organic macromolecules that play an important role in the proper functioning of the…

Q: Mutations that inactivate p53 have a recessive phenotype, whereas mutations affecting Ras are…

A: P53 is a tumor protein, which codes for the protein that regulates the cell cycle and suppresses…

Q: iRNAs are used to “knockdown” gene expression in research. Imagine you are a scientist who hopes to…

A: siRNA: si RNA stands for silencing or short interefing RNA is a double-stranded noncoding RNA that…

Q: which of the following correctly describes how protein kinase A can activate genes? A: nuclear…

A: By activating cAMP-dependent protein kinase-A (PK-A), which is activated when cAMP binds to the…

Q: Match the following changes with the correct responses. (Some answers may be used more than once.…

A: Introduction: Histones are proteins that act as spools for the DNA to wind around. It plays a vital…

Q: Please explain the role of gene expression in the process of a stem cell differentiating into a…

A: Gene expression is the process of central dogma where protein is formed from DNA. Stem cells have…

Q: Explain the importance of the termination of cell signaling, and ways this can be accomplished

A: Cell signaling is a complex process by which cells communicate with each other to coordinate their…

Q: What region would provide cell type-specific expression of genes? region  What site would…

A: The mRNA is given in the figure. The mRNA undergoes the process of translation to produce protein.

Q: statement(s) describe the function of the protein encoded by  KMT2D ? Transcription factor…

A: statements describe the function of the protein encoded by  KMT2D are---- ##  The protein encoded by…

Q: If there were less substrate than enzyme, then Vmax could never be reached. True or False? Enzymes…

A: Almost all biochemical reaction is mediated by the enzymes. Most of the enzymes are made up of…

Q: fill in the blank A small amount of ligand can generate a large response. This is called signal…

A: The objective of the question is to identify the ion that can bring about signal amplification in…

Q: What is the difference in time between signaling pathways that affect protein function vs. pathways…

A: Cells respond to the external environment or stimulus by activating a signaling pathway. It leads to…

Q: Regulation of gene expression in eukaryotes can occur:

A: Transcription is the formation of mRNA from DNA.It occurs in nucleus. The translation is the…

Q: a hormone receptor gene is deleted from the genome of a cell.in the absence of the hormone,what…

A: A hormone receptor is a receptor molecule that binds to a specific hormone. These receptors could be…

Q: Glucocorticoids- Mechanism of Action

A: Glucocorticoids are a type of steroid hormone that is produced naturally by the adrenal glands or is…

Q: Describe the effects of the over-expression of mdm2 on cell proliferation and apoptosis on cell…

A: Mouse double minute 2 homolog (MDM2) is a gene isolated from a mouse chromosome and is encodes MDM2…

Q: Many currently marketed drugs exert their pharmacological effects by binding to ligand-activated…

A: The image provided shows the results of a ChIP experiment examining the effects of various…

Q: Discuss the relationship between genes and phenotype in terms of gene expression and the symptoms…

A: Units of inheritance are called genes. Genes are the DNA regions that encode proteins. Each gene…

Q: The Iron Response Factor (IRF) protein regulates production of both the iron transport protein…

A: Iron regulating factor (IRF) is a cytoplasmic protein that detects intracellular iron levels and…

Q: Determine whether the following will increase or decrease gene expression: mRNA degradation mRNA…

A: The proteins are the final product of a gene that determine the characteristics of an organism. The…

Q: In which tissue(s) is the mRNA and protein highly expressed in? 1. Go to:…

A: As instructed in the above question steps were followed and tissue expression in terms of protein…

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.