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length at biology dictionary

Viability

...rgan ism remains alive; often used to describe the length of time before a seed will fail to germinate. Full article >>> population viability ana lysis (PVA) A method of predicting whether or not a species will persist in a particular environment . positional information ... Full a...

Veins

...ber of major leaf veins which run parallel the length of the leaf ; in dicot s, there are usually numerous auxillary veins which reticulate between the major ones. Full article >>> blood vessels ( veins ) carrying blood from the posterior part of the body to the kidney s. Oxygen...

Variation

...l article >>> restriction fragment length polymorphisms ( RFLP s) Variation s, among individuals in a population , in the length of certain restriction fragment s within which certain genomic sequence s occur. Full article ...

Typhlosole

...ng of the earthworm's intestine along its entire length that increases its surface area for digestive purposes. Covered in Lab 12 Animal Diversity II U ... Full article >>> Ingested food is stored in a crop and ground up in a muscular gizzard. The dorsal surface of the intestine is ...

Transverse

...inally; the arms of such chromosome are equal in length and genetically identical, however, ... Full article >>>...

Translation

...62; Effects of additions and deletion s: If the length of the new or deleted segment is not a multiple of three the translation will be garbled after the point at which the insertion / deletion occurred because the frame reading is now misaligned. Full article >>> A complex organell...

Transcriptase

...d to make c DNA . RFLP -- restriction fragment length polymorphism ; variation s occurring within a species in the length of DNA fragments generated by a species endonuclease . Full article >>>...

Trait

... trait s, such as size and number of offspring , length of maturation, age at first reproduction , and th...e >>> chromosome pairs of the same length centromere position, and staining pattern that possess genes for the same trait s at correspondin...

Stem

...ngth. Flower color has five alleles and stem length has two. Practice Crosses ... Full article >>> Pedicel the region of a plant stem below the receptacle (below a flower ) (ped pediculus = foot ) PelagicZone the open water in the ocean (pelago = the sea) ... Full article &#...

Start codon

...urse of the run, the GA can increase the effective length of its genome by introducing new start codon s in different reading frame s. By the end of the run, "the amount of overlap is quite high. Full article >>> The vector may also carry a ribosome binding sequence (for bacteria l...

SSCP

... -protection assay RFLP : restriction fragment length polymorphism PCR : polymerase chain re action amplification with mutation -specific primer s ... Full article >>> Methods such as single strand conformation polymorphism ( SSCP ) and denaturing gradient gel electropho...

Splicing

...sition of amino acids or it may involve just the length of 3' UTR. Full article >>> Catalyzes the splicing of precursor message RNA . Major components are snRNP s (U1, U2, U4, U5 and U6). Related Precursor m RNA Splicing ... Full article >>> (See DNA polymorphism ...

Spirochetes

...rkscrew-shaped, flexible organ isms that range in length from a few to as many as 500 µm. Two notorious examples: ... Full article >>> And what our research has done is to link acorn production to the risk of exposure to Lyme disease after a time delay, by monitoring acorns, mice, and ...

Spinal cord

...rd A more or less uniform tube extending the full length of the body in vertebrates behind the head. It is enclosed in the backbone. Full article >>> Gray matter in the spinal cord that contains motor nerve cell bodies. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ... Full arti...

Species

...l article >>> Restriction fragment length polymorphisms ( RFLP ) are variation in DNA fragment banding patterns of electrophoresed restriction digests of DNA from different individuals of a species . Full article >>> monoecious Referring to a plant species th...

Southern blotting

...riction fragment s are then separated according to length by agarose gel electrophoresis . The resulting gel may be enhanced by Southern blotting . Full article >>> of a radiol abeled (or chemiluminescent) dexoy nucleotide (dNTP) will yield probe s representing the sequence s found i...

Southern blot

...riction fragment s are then separated according to length by agarose gel electrophoresis . The resulting gel may be enhanced by Southern blot ting . Full article >>> Southern blot ting -- a technique for trans ferring electrophoretically resolved DNA segment s from an agarose g...

SnRNP

...QL standard query language SSLP single- sequence length polymorphism SSR simple sequence repeat STM scanning tunneling microscope STRP short tandem repeat polymorphism STS sequence -tagged site ... Full article >>> Short RNA transcript s of 100-300 bp that associate with ...

Skeleton

...>>> Mapping of locations along the length of individual segment ed chromosomes was achieved by calculating the skeleton of the segment ation mask, converting the skeleton to a smoothed piece-wise linear line description (medial axis), ... Full article >>> They have jaw...

Simple Sequence Repeat

... consist of repeating units of 1-4 base pair s in length [1]. Full article >>> Perry Cregan (USDA, ARS) and others reported continued success with simple sequence repeat s, which are small sequence patterns that are repeated at variable lengths. Full article >>> Heterochro...

Sequence

...rticle >>> repeat sequence s -- The length of a nucleotide sequence that is repeated in a...ate. May be either a synthetic DNA or RNA or a length of RNA synthesized in vivo by primase . Full article >>> Genetic sequence eviden...

Scale

...;> The map usually indicates the approximate length of the entire piece ( scale on the bottom), as well as the position within the piece at which designated enzymes will cut. Full article >>> crawler. The active first instar of a scale insect. crochets. Tiny hooks on the prolegs of...

Satellite DNA

...2; They differ from satellite DNA s in that the length of the repeat is longer and the DNA is not highly repeated. The eukaryotic trans cribed r DNA unit is flanked by not trans cribed or lightly trans cribed segment s. Full article >>>...

Sarcomere

...epeating units, delimited by the Z bands along the length of the myofibril. sarcoplasm The clear, semifluid cytoplasm between the fibrils of muscle fibers. Full article >>> The anatomy of a sarcomere The thick filaments produce the dark A band . The thin filaments extend in each d...

Salivary glands

...lands of Diptera such as Drosophila . Their 2 mm length is much longer than metaphase chromosomes . The polytene chromosomes consist of 100 or more copies of DNA , arranged side by side. Full article >>> We take parasite -infected mosquitoes, so these mosquitoes have malaria para...

Rostrum

...ese archaic whales if we look at the skull are the length of the rostrum , the opening of the nares, the nose, ... Full article >>>...

RNA editing

...sition of amino acids or it may involve just the length of 3' UTR. One reason for alternative/differential splicing is base modification during RNA editing causing a change in slice sites. Full article >>>...

Ribonuclease

... -protection assay RFLP : restriction fragment length polymorphism PCR : polymerase chain re action amplification with mutation -specific primer s ... Full article >>> For example, ribonuclease inhibitor binds to ribonuclease A with a roughly 20 fM dissociation constant. Ot...

Revertant

...ee Back Mutation . RFLP : Restriction fragment length polymorphism ; the acronym is pronounced "riflip". Although two individuals of the same species have almost identical genome s, they will always differ at a few nucleotide s. Full article >>> The revertant s Hall found fell into ...

Reverse transcriptase

...d to make c DNA . RFLP -- restriction fragment length polymorphism ; variation s occurring within a species in the length of DNA fragments generated by a species endonuclease . Full article >>>...

RFLP

... too Definition of RFLP : Restriction fragment length polymorphisms ( RFLP ) are variation in DNA ...Research Institute, defines restriction fragment length polymorphism ( RFLP ). related terms: deoxyribonucleic acid ( DNA ), enzyme , polymorphism , ...

Retrotransposon

... Full article >>> Amplified fragment length polymorphism Genetics Retrotransposon Categories: Molecular biology ... Full article >>>...

Retina

...ls within the eye. RFLP : restriction fragment length polymorphism ; a technique using small bits of DNA fragments linked to various diseases. Full article >>> Retina l consists of a system of alternating single and double bonds. In the dark, the hydrogen atoms attached to the #11 and...

Restriction fragment

restriction fragment length polymorphis ( RFLP ) a DNA polymorphism detect...l article >>> Restriction fragment length polymorphism (Redirected from RFLP ) In molecular biology , ... Full article >>> ...

Restriction enzyme

... is foreign to a bacterium. restriction fragment length polymorphisms ( RFLP s) ... Full article >&... hybrid izing bands shown above was obtained. The length of the restriction fragment s recognized by the probe is dimorphic in this population . Full ar...

Restriction site

...: See Restriction enzyme . Restriction fragment length polymorphism ( RFLP ): Variation in the distan...riction site s) varies between individuals: so the length of the fragments varies, and the position of certain gel bands differs between individuals (thus ...

Restriction

...article >>> restriction fragment length polymorphis ( RFLP ) a DNA polymorphism detect...article >>> restriction fragment length polymorphism ( RFLP ) Definition: Search for: ... Full article >>> Restriction e...

Replication

...ate. May be either a synthetic DNA or RNA or a length of RNA synthesized in vivo by primase . Full article >>> polytene chromosome - large chromosome resulting from repeated DNA replication and alignment of homologs in the absence of mitosis ; found in salivary glands and ...

RAPD

... Molecular Biology RFLP restriction fragment length polymorphism RH radiation hybrid RLGS Restriction Landmark Genomic Scanning ... Full article >>> RAPD Random amplification of polymorphic DNA . A method for identifying differences between genome s of different individual...

Pseudopod

... literally "false feet". repeat sequence s -- The length of a nucleotide sequence that is repeated in a tandem cluster. Full article >>> Pseudopod ia are used by many cells , such as Amoeba , Chaos (Pelomyxa) and human leukocytes ( white blood cells ). These are not structures as ...

Probability

... of a crossover is not uniform along the entire length of the chromosome . Full article >>> The probability that a correct fragment will pass, correctly placed, is at least pm (in the worst case of there only being one such fragment). Full article >>> risk Probability t...

Primer

...#62;>> Primer design The choice of the length of the primer s and their melting temperature d...ate. May be either a synthetic DNA or RNA or a length of RNA synthesized in vivo by primase . Full article >>> Primer This article is ...

Primase

...ate. May be either a synthetic DNA or RNA or a length of RNA synthesized in vivo by primase . Full article >>> primase An enzyme that synthesizes RNA oligonucleotide s used as primer s by DNA polymerase s. primer A short oligomer (of sugars in glycogen or nucleotide s in ...

Primary growth

...f shoot s and roots resulting in an increase in length of the axis. primary immune response The initial...l meristem s, and primarily involves extending the length of the plant body. Covered in Lab 9 Seed Plant Sporophyte ... Full article >>> ...

Polytene

...lands of Diptera such as Drosophila . Their 2 mm length is much longer than metaphase chromosomes . Th...>>> A swelling at a site along the length of a polytene chromosome ; the site of active transcription . A diffuse uncoiled region in a ...

Polymorphisms

... The polymorphisms due to restriction fragment length variation s in the genome s in a human popula...l article >>> Restriction fragment length polymorphisms ( RFLP ) are variation in DNA fragment banding patterns of electrophoresed rest...

Polymorphic loci

... consist of repeating units of 1-4 base pair s in length [1]. Full article >>>...

Polymorphism

...l article >>> Restriction fragment length polymorphism (Redirected from RFLP ) In molecu...Research Institute, defines restriction fragment length polymorphism ( RFLP ). related terms: deoxyribonucleic acid ( DNA ), enzyme , polymorphism , ...

Pineal gland

... appears that the SCN takes the information on day length from the retina , interprets it, and passes it on to the pineal gland (a pea-like structure found on the epi thalamus ), which then secretes the hormone melatonin in response. Full article >>> [Gr. epi - on, upon; Gr. physis - gro...

Phage

... lambda ). MHC class I trans membrane domain length variation , frequent gene conversion s and deletion s in the MHC-linked 21-hydroxylase gene (CYP21), gene conversion s within the MHC class II genes in mice and human s, ... Full article >>> In DNA cloning , the plasmid o...

Package

...s. Each histone molecule has a tail of varying length that protrudes of the core nucleosome . Full article >>> synthesize and package their neurotransmitter in vesicle s for release (by exocytosis) at the synapse often have "reuptake" trans porters that reclaim the trans mitter...

Overhang

...quence s differ between restriction enzymes , the length and the exact sequence of a sticky-end " overhang ", as well as whether it is the 5' or the 3' strand that overhang s, depends on which enzyme produced it. Full article >>> Overhang PAGE See Polyacrylamide Gel Electropho...

Open reading frame

... of DNA which potentially codes for protein . A length of DNA not interrupted by stop codon s. A sequence of in frame codon s preceded by a translation al initiation codon and terminated by a chain termination triplet. Full article >>> Open Reading Frame A brief description of t...

Nucleus

... essential pairing sequence (MEPS) The shortest length of DNA homology required for the initiation of homologous recombination . Full article >>> Chromosomes Structures in the cell nucleus , each containing the DNA for many hundred genes, package d with proteins . Full arti...

Nucleosome

...osome - unit of chromatin consisting of a short length of DNA (about 140 bp) wrapped twice around a core of eight histone proteins (two each of H2A, H2B, H3 and H4). Back to the Top ... Full article >>> nucleosome Structural unit for packaging DNA into chromatin . A nucleosome ...

Notochord

...hord In chordates , a cellular rod that runs the length of the body and provides dorsal support. Also, a...tochord : a flexible rod of tissue extending the length of an animal that provides internal support. nucleic acids : large molecule s comprised of nucl...

Norepinephrine

...tochord : a flexible rod of tissue extending the length of an animal that provides internal support. Full article >>> norepinephrine A neurotransmitter released from the axon ends of some nerve fibers; noradrenaline. Full article >>> Norepinephrine reuptake inhibito...

Nerve impulse

... nerve impulse The signal that travels along the length of a nerve fiber and ends in the release of neurotransmitter s. Nerve impulse s are the means by which information is trans mitted along the neuron and throughout the nervous system . Full article >>> What is a nerve impulse ? A...

Nerve chord

... spinal cord ; a hollow structure that extends the length of the animal just above the notochord . nerve impulse : an electrochemical event that occurs within the neuron . Full article >>> : A major phylum in the Kingdom Animalia . A chordate is character ized by the presence o...

Microtubules

...s have a diameter of about 25 nm are variable in length but can grow 1000 times as long as they are thick are built by the assembly of dimer s of alpha tubulin and beta tubulin . Full article >>> Microtubules act as tracts along which organelles can move. For example, they are as...
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