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Not always. Sometimes, during protein synthesis, the DNA of bacteria makes a mistake and copies the wrong protein causing a defect. This can cause the bacteria in the same colony to be slightly different. Also, bacteria can evolve very quickly, so this can also cause the bacteria in one colony to be slightly different.
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When bacteria reproduce by one cell divides to form two identical cells?
This is called binary fission.
When bacteria reproduce by what one cell divides to form two identical cells?
One parent produces offspring that are exact copies of the parent.
Why do bacteria perform autolysis?
One of the most clinically significant bacteria to undergo autolysis is Strep. Pneumoniae - usually as the colony ages its center undergoes autolysis
What is a bacterial colony?
Isolated colonies of bacteria are the result of a single bacterium which has replicated many times and eventually formed a visable lump of genetically identical bacteria. The colony's shape, texture and colour can somtimes be helpful in identifying the species of bacteria. For example collonies of Serratia marrceccens are typically pink, moist looking, round and small on nutrient agar. I laymans terms isolated colonies are the single separated spots (normally semi-spherical like zits) on the plate after it has been incubated. If the bacteria are put on the plate too close together they will form a lawn which looks like the whole plate is covered evenly.
How do scientists study how bacteria are affected by antibiotics?
Laboratory scientists culture a bacterium (one single bacteria) so the bacteria grows to a colony. Scientists create many specimens of colonies for each bacteria. Then they can expose each colony to a different antibiotic medication or new antibiotic to see how the bacteria react to it. They look for sensitivity--meaning, any reaction in the growth of the bacterial colony. The growth may have no change (no sensitivity), slow down, or stop. But even better, ingredients in antibiotics need to disrupt the way bacteria use nutrients, so scientists look to see if the bacteria die when exposed to that specific antibiotic.Different groups or families of antibiotics work best on certain bacteria. At the same time, certain bacteria favor conditions only in certain areas of the body. So the bacteria for a skin infection is different from the bacteria that infects the urinary tract, for example.
Why is it important to start a bacterial culture with a single isolated colony?
It is important for someone who works with bacteria to have a genetically identical bacterial colony so they can test different things on one type of bacteria. Making observations on that one colony is valuable for visual research and identification of that microorganism.
What is bacterial colony?
A group or cluster of bacteria derived from one common bacteria.
When bacteria reproduce by binary fission one cell produces what?
Two identical cells
When bacteria reproduce by one cell divides to form two identical cells?
This is called binary fission.
In regards to bacterial growth define colony?
Each colony is a mass of bacterial clones, usually founded by one individual cell. So each colony represents one original microbe.
When bacteria reproduce by what one cell divides to form two identical cells?
One parent produces offspring that are exact copies of the parent.
What is the minimum number of bacteria present on one of your plates?
The minimum number of bacteria present on a plate is 1. Depending on how well the bacterial colony was isolated, there may be different kinds of bacteria present.
Why do bacteria perform autolysis?
One of the most clinically significant bacteria to undergo autolysis is Strep. Pneumoniae - usually as the colony ages its center undergoes autolysis
What is the process of bacterial reproduction called?
The most common bacterial reproduction is by Binary Fission, which is the use of mitosis to create two identical cells from one. Rarely, bacteria can reproduce sexually (ie using meiosis to create genetically different daughter cells) but this is not the most widely used mechanism.
What basic assumption is made if the number of bacteria is determined from the number of colonies?
each colony is representative of one bacterium
A colony of bacteria originates from how many bacteria?
All it takes is one bacteria. The cell's divide by binary fission where the microbes DNA splits to form a new cell.
What is a bacterial colony?
Isolated colonies of bacteria are the result of a single bacterium which has replicated many times and eventually formed a visable lump of genetically identical bacteria. The colony's shape, texture and colour can somtimes be helpful in identifying the species of bacteria. For example collonies of Serratia marrceccens are typically pink, moist looking, round and small on nutrient agar. I laymans terms isolated colonies are the single separated spots (normally semi-spherical like zits) on the plate after it has been incubated. If the bacteria are put on the plate too close together they will form a lawn which looks like the whole plate is covered evenly.
