36 results found

Search Results for: f_plasmid

Conjugation

Conjugation generally means the joining or coming together (union), such as in certain unicellular organisms (some bacteria,... Read More

Conjugate

Conjugate Definition Conjugate in a broader sense refers to related pairs of substances or entities that are interconnected... Read More

Vector

Vector Definition When one thinks of vectors one may think of many different things. This is because a vector can be... Read More

Expression vector

Definition noun, plural: expression vectors A plasmid containing the required regulatory sequences specifically used for the... Read More

Plasmid

Definition noun, plural: plasmids A linear or circular double-stranded DNA that is capable of replicating independently of... Read More

Genome

Genome Definition What is a genome? As defined in biology, a genome is a complete set of deoxyribonucleic acid (DNA) within... Read More

Eubacteria

Eubacteria are prokaryotic microorganisms consisting of a single cell lacking a nucleus and containing DNA is a single... Read More

Resistance factor

Definition noun, plural: resistance factors The earlier term used to refer to the plasmid that confers certain bacteria the... Read More

F-factor

Definition noun A DNA sequence or plasmid that confers certain bacteria the ability to produce a sex pilus for conjugation... Read More

Relaxed plasmid

relaxed plasmid A plasmid that replicatesindependently of the main bacterial chromosome and is present in 10-500 copies per... Read More

F-prime bacterium

Definition noun, plural: F' bacteria The bacterium possessing a plasmid containing the F factor and a part of the bacterial... Read More

F-positive bacterium

Definition noun, plural: F+ bacteria A bacterium with F factor existing as a plasmid and not integrated in the bacterial... Read More

Microbe

Microbe Definition What is a microbe? How do we define microbes?  Microbes refer to microorganisms that cannot be seen by... Read More

Deoxyribonucleic acid

Deoxyribonucleic Acid (DNA) Definition A nucleic acid refers to any of the group of complex compounds made up of linear... Read More

Sexual reproduction

Sexual reproduction is a mode of reproduction involving the fusion of haploid female gamete (egg cell) and haploid male... Read More

Sex factor

Definition noun A DNA sequence or plasmid that confers certain bacteria the ability to produce a sex pilus for conjugation... Read More

Nicked circle

nicked circle (Science: molecular biology) During extraction of plasmid dNA from the bacterial cell, onestrand of the DNA... Read More

R factor

Definition noun, plural: R factors Abbreviated term for resistance factor that confers certain bacterial strain resistant to... Read More

Bacillus megaterium

Definition noun An endospore forming rod-shaped bacterium recognized as an endophytes involved in the production of various... Read More

Clostridium tetani

Definition noun An obligate anaerobic rod shaped and gram-positive bacterium which appears to looks like a drumstick that is... Read More

Acinetobacter lwoffii

Definition Noun A gram-negative aerobic and non-fermentative bacterium involved as a normal flora of the skin, perineum and... Read More

Hfr strain

Definition noun A strain of bacterial that possesses the F factor integrated into the bacterial genome, hence, when it... Read More

Hfr cell

Definition noun A bacterial cell that possesses the F factor integrated into the bacterial genome, hence, when it conjugates... Read More

Hfr bacterium

Definition noun, plural: Hfr bacteria A bacterium that possesses the F factor integrated into the bacterial genome, hence,... Read More

Bacteria

Bacteria Definition What are bacteria? What is the definition of bacteria in biology? Bacteria are defined as organisms... Read More

RNA-dependent DNA polymerase

Definition noun A DNA polymerase enzyme that catalyzes the process of reverse transcription. Supplement This enzyme... Read More

Prokaryote

Prokaryote refers to any of the group of living organisms primarily characterized by the lack of a true nucleus and other... Read More

Inoculum

Inoculum Definition Inoculation is a term often heard in microbiology, one of the branches of biology that deals with the... Read More

Sex pili

sex pili (Science: cell biology) fine filamentous projections (pili) on the surface of a bacterium that are important in... Read More

Archaea

Archaea is a group of prokaryotic life forms distinct from bacteria forming a separate domain of life. They possess... Read More

Nif gene

Definition noun, plural: nif genes The complex of genes encoding enzymes involved in the fixation of atmospheric... Read More

Genetic material

Genetic Material Definition What is genetic material? Genetic material is the hereditary substance in the cell. It carries... Read More

Cell division

Cell division is a biological process by which a parent cell duplicates its cell contents and divides to give rise to two or... Read More

Nick

Definition noun, plural: nicks (molecular biology) A cut or a notch in a DNA molecule due to a break in one phosphodiester... Read More

Chromosome

Chromosomes Definition Chromosomes are thread-like structures present in the nucleus of plant and animal cells. Chromosomes... Read More

Transgenesis

Definition noun The process of introducing transgene from one organism into another (unrelated) organism or... Read More