Home (Gene expression)
Home  
 
 
Home » Biology » Gene expression


 

Gene expression

Biology Gene duplicationGene families

Gene expression is the process by which the inheritable information in a gene, such as the DNA sequence, is made into a functional gene product, such as protein or RNA.

 


Gene Expression
Gene expression is the process by which the information encoded in a gene is used to direct the assembly of a protein molecule. The cell reads the sequence of the gene in groups of three bases.

Gene Expression.
When genes are expressed, the genetic information (base sequence) on DNA is first transcribed (copied) to a molecule of messenger RNA in a process similar to DNA replication.

Gene expression in eukaryotes is controlled by a variety of mechanisms that range from those that prevent transcription to those that prevent expression after the protein has been produced.

Monitoring gene expression in yeast shows that different combinations of transcription factors participate in turning on (and off) entire sets of genes (reported by Holstege, F. C. P., et al, in Cell, 25 November 1998.

Eukaryotic Gene Expression Problem Set
Instructions: The following problems have multiple choice answers. Correct answers are reinforced with a brief explanation. Incorrect answers are linked to tutorials to help solve the problem.

Three hours after m1 mAChR activation a different pattern of gene expression was demonstrated. It included the novel genes Gig-3 and Gig-4, as well as the LIM-only protein LM04.

Gene expression analysis
The expression of many genes can be determined by measuring mRNA levels with multiple techniques including microarrays, expressed cDNA sequence tag (EST) sequencing, ...

Gene expression
The process by which a a gene product is produced. For genes that encode proteins, the gene must be transcribed into mRNA and then translated into protein.

Gene expression: The process by which genes express themselves: in the cell, ge ne expression results in the manufacture of proteins that determine an organism's characteristics.

Gene expression. The process of producing a protein from its DNA- and mRNA-coding sequences.
Gene flow. The exchange of genes between different but (usually) related populations.

Examining Gene Expression
Understanding the functions of genes depends on knowing when and in what cells they are each expressed. How can one measure the amount of mRNA transcribed from a gene in a particular cell type?

See gene expression.
Related Terms:
Gene expression
The process by which a gene's coded information is converted into the structures present and operating in the cell.

(See Dominant gene, Fusion gene, Gene amplification, Gene expression, Gene flow, Gene pool, Gene splicing, Gene translocation, Recessive gene, Regulatory gene.) Gene amplification. The presence of multiple genes.

See gene expression .
Gene expression The process by which a genes coded information is converted into the structures present and operating in the cell.

CONTROL OF GENE EXPRESSION (3/12/07)
PLANTS AND THEIR STRUCTURE (REVISED 3/12/07)
PLANTS AND THEIR STRUCTURE II (REVISED 3/12/07)
FLOWERING PLANT REPRODUCTION: Flower Structure (REVISED 6/22/01) ...

PKA inhibition leads to increase C-term Ci staining (Hh & Smo independent) and Hh target gene expression (Smo dependent and somewhat Hh dependent) (Ohlmeyer, 1997) ...

Gene Expression
Integrated Molecular Analysis
Genetic Counselors
National Society
Genetic Engineering
International Center
Genetic Services
Regional Networks
Genetically Modified
Adventitious Presence ...

(Science: molecular biology) in the regulation of gene Expression for enzymes concerned with amino acid synthesis in prokaryotes, the leader sequence codes for the leader peptide that contains several residues of the amino acid being regulated.

Coordination of gene expression, protein synthesis, and post-translational events
Interaction of proteins in complex molecular machines
Predicted vs experimentally determined gene function
Evolutionary conservation among organisms ...

A technique to monitor gene expression in thousands of genes. Thousands of probe DNAs are spotted or synthesized on microscope slides. Sample RNAs are labeled with fluorescent dyes.

Epigenetics: The study of heritable changes in gene expression that occur without a change in DNA sequence. Epigenetic phenomena such as imprinting and paramutation violate Mendelian principles of heredity.

A DNA base sequence that controls gene expression.
[New Search Form] Programming: Herbert Maier
Database: Birgid Schlindwein. Please contact me if you encounter any mistakes or if you are missing anything
© Dr. Birgid B. Schlindwein ...

The parental effect on gene expression. Identical alleles may have different effects on offspring, depending on whether they arrive in the zygote via the ovum or via the sperm.
genomic library ...

enhancer trap A type of DNA construct used to identify regulatory elements controlling spatial or temporal patterns of gene expression. The construct includes a reporter gene fused to a minimal or weak promoter.

Combinatorial control A means of controlling gene expression in eukaryotes in which each transcription factor, rather than acting on its own to effect transcription, ...

OPERON - A complete unit of bacterial gene expression and regulation, including the structural gene or genes, regulator gene(s), and control elements in DNA recognized by regulator gene products(s).

Nuclear reprogramming: Restoration of the correct embryonic pattern of gene expression in a nucleus derived from a somatic cell and introduced into an oocyte.

Euchromatin noun (and Euchromatic adjective) chromatin with a normal pattern of replication and gene expression. Compare with heterochromatin.

Werth, C. R., and Windham, M.D., 1991, A model for divergent, allopatric, speciation of polyploid pteridophytes resulting from silencing of duplicate- gene expression, AM-Natural, Volume 137(4):515-526.

Omega-3 and Omega-6 fatty acids found in fish oils
They are important in a variety of functions involving cell membranes, vision, memory, gene expression, inflammatory response ...

As a cell begins to form certain structures, certain genes are turned on, others are turned off. Induction affects patterns of gene expression through physical contact or chemical signals. Formation of the vertebrate eye is a well known example.

differentiation
Divergence in structure and function of cells as they become specialized during a multicellular organism's development; depends on the control of gene expression (cell differentiation).

See also: Expression, Gene, Express, DNA, Protein