definicje

 0    88 fiche    dominikam154a
Télécharger mP3 Imprimer jouer consultez
 
question English réponse English
hereditary unit consisting of a sequance of dna that occupies a specific location on a chromosome and is transcribed into an rna molecule that may function directly or be translated into an amino-acid chaim
commencer à apprendre
gene
are nucleic acids that along with proteins and carbohydrates constitute three major macromolecules that form a living body.
commencer à apprendre
RNA and DNA
a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of gene
commencer à apprendre
chromosome
a cell with a true nucleus; a cell with a nuclear membrane and organelles.
commencer à apprendre
eukaryotic cell
a specialized part of a cell having some specific function; a cell organ.
commencer à apprendre
organelle
any cellular organism that has no nuclear membrane, no organelles in the cytoplasm except ribosomes,
commencer à apprendre
prokaryotic cell
the total genetic content contained in a haploid set of chromosomes in eukaryotes, in a single chromosome in bacteria or archaea, or in the DNA or RNA of viruses.
commencer à apprendre
genome
the complete set of genes for an organism
commencer à apprendre
genome
is a polymer of two strands of nucleotides which are hydrogen bonded to form a double helix
commencer à apprendre
DNA
a protein molecule and a biological catalyst which brings about a specific biochemical reaction in an organism.
commencer à apprendre
enzyme
stretches of DNA at the ends of chromosomes that play crucial role protecting the ends of DNA when the cell is replicating.
commencer à apprendre
telomeres
nucleid acid essential in various biological roles in coding, decoding, regulation and expression of genes.
commencer à apprendre
RNA
an enzyme in eukaryotic cells that can add telomeres to the ends of chromosomes after they divide.
commencer à apprendre
telomerase
a varied group of illnesses that involve nearly every human organ system and in which the body’s immune system becomes misdirected and attacks the very organs it was designed to protect.
commencer à apprendre
autoimmune diseases
an organelle in the cytoplasm of cells that functions in energy production.
commencer à apprendre
mitochondrion
the growing of micro-organisms on a medium, such as agar, in an incubator kept at body temperature, for purposes of identification.(noun)
commencer à apprendre
bacterial culture
the scientific study and engineering of chemical or biological objects measuring between 1 and 1000 nanometers. Objects this small are about the size of atoms or small molecules.
commencer à apprendre
nanotechnology
is any of several related green pigments found in cyanobacteria and the chloroplasts of algae and plants.
commencer à apprendre
chlorophyl
a biological preparation that provides active acquired immunity to a particular disease
commencer à apprendre
a vaccine
organisms that consist of more than one cell, in contrast to unicellular organisms.
commencer à apprendre
multicellular organisms
kind of products that are long-term and don’t decay quickly.
commencer à apprendre
non-perishable food
part of the circulatory system used to transport blood through the body.
commencer à apprendre
blood vessel
chemical compounds, mainly proteins, accelerating chemical reactions occurring in living organisms by reducing their activation energy. They increase the rate at which chemical reactions occur without being consumed or permanently altered themselves
commencer à apprendre
enzymes
chemical substances added to food to stop it from decaying.
commencer à apprendre
preservatives
a substance (enzyme) used for making milk thicker, especially to make cheese
commencer à apprendre
rennet
tiny living things that are found all around us and are too small to be seen by the naked eye.
commencer à apprendre
microbes
plants that contain foreign DNA in their cells.
commencer à apprendre
genetically modified crops
a member of a group of people without permanent residence, moving from place to place.
commencer à apprendre
Nomadic herdsmen
a structural layer surrounding some types of cells, just outside the cell membrane.
commencer à apprendre
cell wall
is a cell with the unique ability to develop into specialized cell types in the body.
commencer à apprendre
stem cell
globular proteins that control biological reactions; substances produced by our bodies that help us to digest the foods we eat.
commencer à apprendre
digestive enzymes
the process of converting waste materials into new materials and objects. It is an alternative to "conventional" waste disposal that can save material and help lower greenhouse gas emissions.
commencer à apprendre
recycling
is the direct manipulation of the genome in humans using molecular engineering techniques. Genetic modification can be applied in two very different ways: somatic genetic modification and germline genetic modification.
commencer à apprendre
human genetic modification
conscious and intentional interference in the genetic material of organisms in order to change their hereditary properties.
commencer à apprendre
gene technology
sort of genetic modification that adds, cuts, or changes the genes in some of the cells of an existing person, because of a medical condition. The change is done in somatic cells and therefore not inherited.
commencer à apprendre
somatic genetic modification
sort of genetic modification that would change the genes in eggs, sperm, or early embryos. Modifying a germ cell causes all the organism's cells to contain the modified gene. The change is therefore heritable and passed on to later generations
commencer à apprendre
germline genetic modification
therapeutic gene transfer
commencer à apprendre
gene terapy
is the process by which the heritable information in a gene, the sequence of DNA base pairs, is made into functional gene product, such as protein or RNA.
commencer à apprendre
gene expression
is the process by which the therapeutic genes are transferred into any cell other than a gamete, germ cell, gametocyte, or undifferentiated stem cell. Any such modifications affect the individual patient only, and are not inherited.
commencer à apprendre
somatic cell gene therapy
is the process by which germ cells are modified for therapeutic reasons by the introduction of functional genes into their genomes. Modifying a germ cell causes all the organism's cells to contain the modified gene
commencer à apprendre
germline gene therapy
is the smallest part of living structure that can operate as an independent unit
commencer à apprendre
cell
the chemical break down of a substance by bacteria, yeasts or other microorganisms; extraction of energy from carbohydrates in the absence of oxygen; metabolic process that produces chemical changes in organic substrates by the action of enzymes
commencer à apprendre
fermentation
a chemical used to kill pests, especially insects
commencer à apprendre
pesticide
it's a combination of two different elements using chemical bond
commencer à apprendre
compound
a group of atoms bonded together representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
commencer à apprendre
molecule
is a type of wastewater that is produce by community of people
commencer à apprendre
sewage
a membrane-bound organelle found in eukaryotic cells, chich contains cell’s genome (except for mitochondrial DNA)
commencer à apprendre
nucleus
is a small DNA molecule within a cell that is physically separated from chromosomal DNA and can replicate independently; circular DNA molecule found in bacteria and other cells.
commencer à apprendre
plasmid
plants that have been genetically engineered and contain foreign DNA in their cells.
commencer à apprendre
transgenic plants
plants that are grown up by humans for food and other resources
commencer à apprendre
crop plants
is a common laboratory technique used to make many copies (millions or billions!) of a particular region of DNA.
commencer à apprendre
polymerase chain reaction(PCR)
a short sequence of nucleotides that provides a starting point for DNA synthesis in PCR
commencer à apprendre
primer
are short pieces of single-stranded DNA, usually around 20 nucleotides in length
commencer à apprendre
pcr primers
an enzyme which brings about the formation of a particular polymer, especially DNA or RNA.
commencer à apprendre
polymerase
any of a group of molecules that, when linked together, form the building blocks of DNA or RNA: composed of a phosphate group, the bases adenine, cytosine, guanine, and thymine, and a pentose sugar, in RNA the thymine base being replaced by uracil.
commencer à apprendre
nucleotide
a compound that consist of a ribose or deoxyribose sugar, nitrogen bases and a phosphate, it is a basic structural unit of nucleic acids
commencer à apprendre
nucleotide
one of the four nitrogen bases, combines with thymine
commencer à apprendre
adenine
one of the four constituent bases of nucleic acids. It is paired with cytosine in double-stranded DNA.
commencer à apprendre
guanine
a compound which is one of the four constituent bases of nucleic acids. The symbol is ‘T’ and combines with adenine.
commencer à apprendre
thymine
an organic chemical compound, one of the pyrimidine bases found in DNA and RNA as an element of nucleotides. It forms a pair with guanine.
commencer à apprendre
cytosine
an illness, which is not very serious, typically a minor one
commencer à apprendre
ailment
a class of nitrogenous organic compounds which have large molecules composed of one or more long chains of amino acids and are an essential part of all living organisms.
commencer à apprendre
protein
an odourless, tasteless white substance occurring widely in plant tissue and obtained chiefly from cereals and potatoes.
commencer à apprendre
starch
a type of gram-negative bacteria that lives naturally in soil. It has the unique ability to transfer its DNA to plants.
commencer à apprendre
agrobacterium
the first step in gene expression, by which the information in a strand of DNA is copied into a new molecule of messenger RNA.
commencer à apprendre
transcription
is a biological preparation that provides active acquired immunity to a particular infectious disease.
commencer à apprendre
a vaccine
is a large, Y-shaped protein used by the immune system to identify and neutralize foreign objects such as pathogenic bacteria and viruses.
commencer à apprendre
an antibody
is a form of indirect protection from infectious disease that occurs when a sufficient percentage of a population has become immune to an infection, whether through vaccination or previous infections
commencer à apprendre
herd immunity
is how your body recognizes and defends itself against bacteria, viruses, and substances that appear foreign and harmful.
commencer à apprendre
the immune response
zastrzyk
commencer à apprendre
an injection
chemical substance produced naturally by living organisms, such as microorganisms like bacteria or fungi or obtained synthetically
commencer à apprendre
antibiotic
the ability to actively and passively protect the body against pathogens
commencer à apprendre
resistance
happens when germs like bacteria and fungi develop the ability to defeat the drugs designed to kill them
commencer à apprendre
antibiotic resistence
the process of circulating blood throughout the body, providing water and nutrients to the tissues
commencer à apprendre
bloodstream
a substance that acts locally, on the epidermis or systemically, when the drug substance enters the blood
commencer à apprendre
ointment
a disease causing agent
commencer à apprendre
pathogen
a toxin or other foreign substance that induces immune response in the body
commencer à apprendre
antigen
long lasting immunity that occurs when an individual produces antibodies to a disease
commencer à apprendre
active immunity
short-term immunity achieved by transfer of antibodies
commencer à apprendre
passive immunity
type of incomplete oxidation of carbohydrates yielding carbon dioxide and alcohol or organic acids and an amount of energy(ATP) that is being converted by microorganisms - bacteria processing this process.
commencer à apprendre
fermentation
the action of purifying a liquid by a process of heating and cooling
commencer à apprendre
distillation
a disaccharide sugar that is found most notably in milk and is formed from galactose and glucose
commencer à apprendre
lactose
a type of fungus to use for producing alcohol in beer and wine and for making bread rise
commencer à apprendre
yeasts
the liquid remaining after milk has been curdled and strained
commencer à apprendre
whey
a substance that provides nourishment for growth or metabolism
commencer à apprendre
nutrient
the solid substance which forms when milk turns sour
commencer à apprendre
curd
any one of various liquids for drinking, usually exluding water
commencer à apprendre
beverage
a plant that produces grain, used as food for people and animals
commencer à apprendre
cereal

Vous devez vous connecter pour poster un commentaire.