Y chromosome
... base pairs (the building blocks of DNA) ...
genes on the Y chromosome are among the estimated 20,000 to 25,000 total
genes ... Y chromosome infertility is a ... researchers say that there is a dramatic loss of
genes from the human Y chromosome that could ...
X chromosome
...... The X chromosome carries a couple thousand
genes but few, if any, of these have ... The X ... base pairs (the building blocks of DNA) ...
genes on the X chromosome are among the estimated 20,000 to 25,000 total
genes ... X-chromosome or X chromosome ( ) n. ...
Tumor suppressor
... below, a large number of tumor suppressor
genes ... Thus far, about 30 tumor suppressor ... a ... ) ( cell and molecular biology ) A class of
genes which, when mutated, predispose an individual to ... source for information on Tumor Suppressor
genes and Proteins. ... Search Tumor Suppressor ... ...
Transgenic plant
... Transgenic plants possess a gene or
genes that have been transferred from a different ... that have been genetically modified by inserting
genes directly into a single plant cell Transgenic plants possess a gene or
genes that have been transferred from a ... 5 ...
Transgenic
... Transgenic plants possess a gene or
genes that have been transferred from a different ... that have been genetically modified by inserting
genes directly into a single plant cell ... crops which have been genetically modified with
genes from ... Transgenic System, Transgenic ...
Tet resistance
... resistance to macrolides (10), and tet
genes coding for ribosomal ... resistance
genes have been found in anaerobes (3, 18), only the ... general a greater diversity of tet resistance
genes was detected in the high ... were tested by PCR ...
Synteny
... ... synteny n. The condition of two or more
genes being located on the same chromosome whether or ... Synteny refers to the occurrence of two or more
genes on the same chromosome, ... A disrupted synteny refers to circumstances where a pair of
genes are located on ... Synteny map. Human NCBI ...
Supergene
... A supergene is a group of neighbouring
genes on a chromosome which are inherited together ... supergene ( ) n. A group of closely linked
genes occupying a large chromosomal segment and ... ... Tutorial on how to create custom
genes with JGAP to make up a genetic algorithm. ... In ...
Structural gene
... a promoter, and one or more structural
genes gene n. A hereditary unit consisting of a ... in living organisms. ... The structural
genes and the respective regulatory sequences ... than ... Operon - a cluster of structural
genes that are expressed as a group and their ... and ...
Somatic hypermutation
... Rearrangements of the antigen receptor
genes occur during ontogeny in B and T lymphocytes. ... 5-101-0022 ... Somatic hypermutation of Ig
genes is probably dependent on transcription of the ... ... Somatic hypermutation of immunoglobulin
genes is linked to transcription initiation. ... ...
SnRNA
... ... Transcription of the mammalian snRNA
genes is directed by two promotor elements: ... The U1 through U5 snRNA
genes are transcribed by RNA polymerase II, but lack ... the gene to ... Structure of U2 snRNA
genes of Arabidopsis thaliana and their expression in ...
Single-gene disorder
... is an illness caused by abnormalities in
genes or chromosomes. While some diseases, such as ... genetic disorders due ... Home >
genes and the body >
genes and disease > Background > Single gene ...
Sex-linked
... the same probability of expressing ...
genes that are carried by either sex chromosome are ... . ... Many of the non- sex determining X-linked
genes are responsible for abnormal ... This is sex - linked genes,
genes located on one of the sex chromosomes (X or ...
Ribosomal DNA genes
... D. ... in the organization of ribosomal DNA
genes during evolution: 1) gradual ... Natural variation in DNA methylation in ribosomal RNA
genes of Arabidopsis thaliana. ... The ribosomal
genes coding for the 45S rRNA precursor of the three ...
Repressor
... that regulates the expression of one or more
genes by decreasing the rate of transcription. This ... protein which inhibits the expression of
genes coding for proteins involved in the metabolism ... targets a specific co-regulated group of
genes by recognizing a ... Britannica online ...
Reporter Gene
... in cell culture, animals or plants. Certain
genes are chosen as reporters because the ... Roche Molecular Biochemicals. ... Reporter
genes and Proteins ... reporter proteins in use: ... GFP expression from reconstituted reporter
genes . 3. References ... ... be cited as: Boulin, ....
Repetitive DNA
... Interspersed repetitive DNA elements allow new
genes to evolve. They do this by ... ... selective pressures from those acting on
genes ... The repetitive DNA in the genome is ... 100's) of copies. Can be functionally important
genes ... MEE: Repetitive DNA OH 18. rDNA rDNA rDNA ...
Recombination
... is the process by which the combination of
genes in an ... However, in molecular biology, ... ... recombination , process of "shuffling" of
genes gene, the structural unit of ... In ... One of the sources of those new combinations of
genes is recombination . ... Get information, ...
Recessive
... recessiveness Failure of one of a pair of
genes ( allele s) present in an ... The term ... inheritance occurs when both matching
genes must be abnormal to ... Autosomal recessive . ... ... Recessive inheritance occurs when BOTH
genes of a pair must be ... Dominant & ...
Recessive gene
... gene " ... Dominant & recessive
genes : K-12 experiments, lesson plans, class ... that causes a ... Examples of recessive
genes in Mendel's famous pea plant experiments ... The three criteria for identifying recessive
genes : ... The recessive gene is present in the ...
Quantitative trait
... to the interactions between two or more
genes and ... Quantitative genetics is the ... that the combined effect of the many underlying
genes results in a continuous distribution of ... ... Each trait is controlled by a number of
genes and is a quantitative trait . ... ...
Pseudoautosomal regions
... ) ( genetics ) Pertaining to segments ... of
genes located on the x chromosome that are not in the ... of the human pseudoautosomal region (PAR)
genes and the ... The pseudoautosomal regions of ... ... THE PSEUDOAUTOSOMAL REGIONS .
genes IN HUMAN PAR1 AND PAR2. PAR1/PAR2 AND DISEASE ... ...
Positional cloning
... of interest. A genetic screen for new
genes is often referred to as forward genetics as ... the term for identifying mutant alleles in
genes ... Functional cloning involves using a ... can search through entire genomes to find
genes of ... Brief and Straightforward ...
Polygenic inheritance
... to the interactions between two or more
genes and ... The simple rules of Mendelian ... in the Rh blood factor. ... The role of many
genes ( polygenic inheritance ) in production of a ... is quite complex, and the ways in which multiple
genes ... ChessieInfo ... Polygenic Inheritance . ...
Polygenic disorders
... disorder is an illness caused by abnormalities in
genes or chromosomes. While some diseases, such as ... to the interactions between two or more
genes and ... Genetic disorders may result from defects in
genes or from ... Polygenic ... cause of genetic ...
Polycistronic
... large polycistronic units, with the first 29
genes ... Analysis of processing of the metT ... most polycistronic transcripts comprise
genes contributing ... because polycistronic mRNA ... back to your questio, polycistronic means many
genes on 1 mRNA strand. ... Polycistronic mRNA is ...
Plastid
... a genetically modified plant in which the new
genes have not been inserted in the nuclear DNA but in ... to initiate protrusions from the ... Plastid
genes in higher plants are transcribed by two distinct ... ... plants a small family of nuclear
genes encodes the plastid sigma factors. ... ...
Operon
... and an ... The lac operon . ... the
genes in these operons appear — as in bacteria ... ... operon consists of a group of structural
genes that code for enzymes ... Operon summary ... of E. coli controls ... This operon contains
genes for the production of five proteins which are ...
Oncogene
... It is estimated that fully 1% of the 25,000 or so
genes in the human genome are proto- oncogenes . ...... other ... Oncogene : (1) Any of a family of
genes that normally ... Information about oncogene ... Free Trial, Credit Card Required.
genes and Disease provides an introduction to the ...
Multiple alleles
... is human ... Each of the contributing
genes can also have multiple alleles . ... Multiple ... most common is multiple alleles . ... but many
genes have more than two different alleles --thus, " ... to three or more ... MULTIPLE ALLELES ...
genes with 8 alleles can generate 36 genotypes ... ...
Multigenic disorder
... is an illness caused by abnormalities in
genes or chromosomes. While some diseases, such as ... are multigenic , meaning that two or more
genes are responsible for the disorder . ... ... disease—meaning it is caused by multiple
genes that ... AMD is one of the few multigenic ...
Multi-gene family
... A gene family is a set of
genes with a known homology. They are generally biochemically similar.
genes are categorized this way into families, depending ... terms, ... Multi - gene family : A group of
genes that are related by sequence homologies; ... ...
Mendelian inheritance
... the inheritance of traits linked to single
genes ... Problem sets and tutorials from the ... Inheritance in Man, a database of human
genes and genetic disorders developed by staff at Johns ... ... case, the modes of inheritance for the
genes involved will ... ...
Mating type
... Heterologous expression of mating - type
genes in filamentous fungi. ... Mating type ... locus in C. ... In addition, mating type
genes can play important roles in the epidemiology and ... neoformans. ... Identification of Mating Type
genes in the Bipolar Basidiomycetous Yeast ... ( ...
Maternal effect
... effect gene, bicoid. ... Maternal effect
genes are a special class of
genes that have their effect in the ... I'll explain ... portion of ... linked, maternal effect
genes can also facilitate the evol ... wimp is a ...
Linkage map
... the linear order and genetic distance between
genes in a linkage Genetic linkage Genetic ... genetic studies involving molecular tagging of
genes ... position of centromeres on both classical ... analysis for linkage . Map distance ... map
genes on chromosomes. Until modern gene mapping ...
Linkage group
... when particular genetic loci or alleles for
genes are inherited jointly. Genetic loci on the same ... ... linkage group n. A pair or set of
genes on a chromosome that tend to be transmitted ... (lngkj) ... linkage group - any pair of
genes that tend to be transmitted together; "the ... ...
Lac repressor
... protein which inhibits the expression of
genes coding for proteins involved in the metabolism ... protein which inhibits the expression of
genes coding for Structural dynamics of the Lac ... The effect of the Lac repressor on the lac
genes is referred to as negative regulation. ... The ...
Inverted repeat
... rather than the sequence that is ... The PAI
genes are arranged as a tandem inverted repeat plus two singlet
genes at unlinked loci. ... particular, the PAI1–PAI4 ... a transcribed inverted repeat of endogenous
genes in Arabidopsis ... The PAI1-PAI4 inverted ...
Intergenic region
... of DNA sequences located between clusters of
genes that contain few or no genes. Occasionally some intergenic DNA acts to control
genes close by, but most of it has no currently known ... terms,biology abbreviations ...
genes and intergenic regions , ... Full article > ...