Dictionary, Defintion, Meaning, What is Layuering - Library Genome, Leader peptide, Leader sequence, Leading strand, Leaf blade

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Molecular Biology Dictionary Molecular Biology Dictionary Part 1 Part 2 Part 3 G / Guanin Residue - G Cap GC Island - Gene Bank Gene Cloning - Gene Pool Gene Probe - Genetic Assimilation Genetic Complementation - Genetic Immunization Genetic Information - Genomic blot Genomic Clone - Germination Germ Line Cells - GMP Good Manufacturing Practice GMP Guanosine monophosphate / Guanosine - Gravitropism / Geotropism GRE (Glucocorticoid Response Element) - Growth Curve Growth Factor Growth Phase Curves - Gynogenesis Habituation - Haploid Haploid Cell - Hemicellulose Hemizygous, Haplozygous - Heterologous Probe Heterologous / Recombinant Protein - HIV (Human Immunodeficiency Virus) HLA (Human Leukocyte Antigen System) - Homology Homomultimeter / Homopolymer - Hybrid Seed Hybrid Selection - Hypoplastic Hypoploid - Hysteresis (Magnetic) ICSI (Intracytoplasmic Sperm Injection) - Immunoassay , Immunidiagnosis Immuno Chemical Control - Incompatibility Group

Home >> Molecular Biology Dictionary >> Layuering - Library Genome

Your Ad Here	Layering Technique for vegetative propagation, in which new plants produce adventitious roots before being severed from the parent plant. LCR See ligase chain reaction. Leader peptide See signal sequence. Leader sequence A sequence of nucleotides at the 5’ end of an mRNA that is not translated into protein. Leading strand The strand of DNA that is synthesized continuously during replication.
Leaf blade The usually flattened portion of the leaf. Leaf bud cutting A cutting that includes a short section of stem with attached leaf. Leaf margin The edge of a leaf. Leaf primordium (L. primordium, a beginning) A lateral outgrowth from the apical meristem, which will become a leaf when fully developed and expanded.
Leaf roll Virus disease characterized by symptomatic curling of the host’s leaves. Leaf scar Mark left on a stem after leaf abscission. Leaflet Expanded leaflike part of a compound leaf. Lectin Any of a group of proteins, derived from plants, that can bind to specific oligosaccharides on the surface of cells, causing cells to clump together.	Your Ad Here
Leptonema (adj: Leptotene) Stage in meiosis immediately preceding synapsis, in which the chromosomes appear as single, fine, threadlike structures (but they are really double because DNA replication has already taken place). Lethal allele; lethal gene A mutant form of a gene that eventually results in the death of an organism if expressed in the phenotype. Lethal gene See lethal allele. Lethal mutation See lethal allele.
Your Ad Here	Leucine zipper A motif found in certain proteins in which Leu residues are evenly spaced through an a-helical region, such that they would end up on the same face of the heliux. Dimers can form between two such proteins. The Leu zipper is important in the function of transcription factors such as Fos and Jun and related proteins. Library A library might be either a genomic library, or a DNA library. In either case, the library is just a tube carrying a mixture of thousands of different clones-bacteria or 1 phages. Each clone carries an “insert” – the cloned DNA.

A cDNA linrary is usually a mixture of bacteria, where each bacteria carries a different plasmid. Inserted into the plasmids (one per plasmid) are thousands of different pieces of cDNA (Each typ. 500-5000 bp) copied from some source of mRNA, for example, total liver mRNA. The basic idea is that if you have a large enough number of different liver-derived cDNAs carried in those bacteria, there is a 99%, probability that a cDNA copy of any given liver mRNA exists somewhere in the tube. The real trick is to find the one you want out of that mess – a process called screening (see “Screening”).
A genomic DNA (and so contains introns and flanking regions, as well as coding and untranslated); 2 you needed bacteriophage 1 or cosmids, rather than plasmids, because….3) the inserts are usually 5-15 kb long (in a 1 library is most commonly a tube containing a mixture of 1 phages. Enough different phages must be present in the library so that any given piece of DNA from the source genome has a 99% probability of being present. A collection of cells, usually bacteria or yeast, that have been transformed with recombinant vectors carrying DNA inserts from a single species. See cDNA library; expression library; genomic library; bank; gene bank.

Life cycle
The complete sequence of events undergone by organisms of a particular species, from the fusion of gametes in one generation to the same stage in the following generation.

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Molecular Biology Dictionary Part 4 Part 5 Part 6 Incomplete Dominance - Inheritance Initiation Codon, Initiator - In situ Conservation In situ Conservation of Farm Animal Genetic Diversity - Interference Intergeneric - Intron, Intervening Sequence Intron - In vivo In vivo Gene Therapy - IVM (In vitro Maturation) Joining Segment - Juvenile in vitro Embryo Technology - JIVT, JIVET Kanamycin - Kinetosome Kinin - Knock out Experiment Lag Phase - Lattice Parameter Layering - Library Genome Ligase - Linearized Vector (Ligation) LINEs (Long Interspersed Nuclear Elements - Lipofection Lipoprotein Liposome - Lod Score Long Day Plant - Lysogeny Lysozyme - Lytic Cycle M13 Strand - Map

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