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Rifampicin resistance is encoded by a gene residing on the chromosome of Agrobacterium, so its purpose is to prevent contamination by other bacteria when it is grown in culture
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∙ 12y ago
Rifampicin is an antibiotic that inhibits bacterial RNA polymerase, preventing transcription of essential genes. When used in selection of Agrobacterium, it targets and kills non-transformed cells that do not contain the resistance gene, allowing only transformed cells to survive due to their ability to withstand rifampicin.
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Is Agrobacterium tumifacians a fungi?
No, Agrobacterium tumefaciens is a bacterium, not a fungus. It is a soil-dwelling bacterium that is known for its ability to transfer DNA between itself and plants, causing the formation of plant tumors.
How can genetic drift and gene flow affect natural selection?
Genetic drift can reduce genetic variation within a population, making it harder for natural selection to act upon beneficial traits. Gene flow, on the other hand, can introduce new genetic variation into a population, potentially increasing the pool of traits for natural selection to act upon. Overall, both genetic drift and gene flow can influence the effectiveness of natural selection by altering the genetic composition of populations.
What is the difference between choice and selection?
"Choice" refers to the option to pick among various alternatives, while "selection" refers to the act of choosing something specific from those options. In other words, choice is the availability of options, while selection is the actual decision-making process of choosing one option over the others.
What are the Advantages of agrobacterium in plant transformation?
Agrobacterium is efficient at transferring DNA into plant cells, allowing for stable integration of genes. It has a broad host range, infecting a wide variety of plant species. Agrobacterium-mediated transformation results in lower levels of genetic mosaicism compared to other methods, leading to more predictable and reliable gene expression in transformed plants.
Evolution by natural selection works best on populatin having no variation?
Evolution by natural selection actually relies on variation within a population. Without variation, there would be no genetic differences for natural selection to act upon, leading to no evolution. Variation provides the raw material for natural selection to work with, allowing beneficial traits to be favored and passed on to future generations.
What is an agrobacterium?
An agrobacterium is a soil bacterium which causes the formation of crown galls in plants.
Why colony of agrobacterium is pink on yeast extract agar media?
The pink color of Agrobacterium colonies on yeast extract agar media is due to the production of a pigment called violacein. The presence of violacein is a characteristic feature of Agrobacterium species and contributes to the pink color of the colonies. This pigment production can help to differentiate Agrobacterium from other bacteria on culture plates.
Which is the organism that is known as geneticengineer?
agrobacterium
Is Agrobacterium tumifacians a fungi?
No, Agrobacterium tumefaciens is a bacterium, not a fungus. It is a soil-dwelling bacterium that is known for its ability to transfer DNA between itself and plants, causing the formation of plant tumors.
What does the term selection mean?
Selection is the act of choosing.
What type of bacteria decays plants?
Agrobacterium
What is agrobacterium mediated gene transfer?
transfer of gene with the help of Ti plasmid present in Agrobacterium which has T-dna region by which gene van transfer.
Is agrobacterium rhizogenes aerobic or anaerobic in nature?
aeobic
Does transformation by Agrobacterium work best in monocotyledon plants?
no
Does risorine kit has any side effects?
Risorine kit contains the standard formulation of anti tubercular drugs with the difference that the dose of rifampicin is reduced from 450 mg to 200 mg,a decrease of about 60 %.Since rifampicin is put in a lesser dose,therefore the side effects are also correspondingly much less.However since the rifampicin is boosted,the dose of 200 mg boosted rifampicin works better than that when given in 450 mg.
Can a pregnant woman take rifampicin as prophylaxis for meningococcemia?
Yes
Does natural selection act on the phenotype?
yes
