can be either bacteria or bacteria vs can be either bacteria and bacteria

The correct phrase is "can be either bacteria or bacteria." Using "and" in this context is incorrect. The conjunction "or" is used to present two options that are mutually exclusive.

Last updated: March 23, 2024 • 551 views

This phrase is correct and commonly used in English.

"can be either bacteria or bacteria"

This phrase is used to present two options that are mutually exclusive. The word "or" is the correct conjunction to use in this context.

Show examples from the web [+]

As regards the product's microbiological properties, the aerobic mesophilic bacteria, aciduric lactic bacteria and lactic bacteria that develop during ageing must exceed 1 × 107 colony-forming units/g.
While antibiotics including Tygacil fight certain bacteria, other bacteria and fungi may continue to grow.
On Earth, we had bacteria, and not just individual bacteria but bacteria that formed colonies, which created rocks known as stromatolites.
But might turn out to be as different from bacteria as bacteria is from us.
25x109 bacteria* 25x109 bacteria* 25x109 bacteria
They're the size of bacteria, but no bacteria l've seen.
However, as moxifloxacin inhibits both topoisomerase II and IV with similar activity in some Gram-positive bacteria, such bacteria may be resistant to other quinolones, but susceptible to moxifloxacin.
To take an example close to home: there are over 500 species of bacteria now known - friendly bacteria - living symbiotically in your mouth and throat probably necessary to your health for holding off pathogenic bacteria.
Now there are a hundred different ways to make a mistake and not find bacteria where there are bacteria, but there is no way to find bacteria where there are no bacteria.
The exciting phase came when we took this piece of inert chemical and put it in the bacteria, and the bacteria started to read this genetic code, made the viral particles.
There's no evidence of any known bacteria or virus.
Science fiction and assume that the conspirators meteorites that can bring deadly bacteria or viruses.
That narrows it down to couple thousand types of virus or bacteria.
Ear infections in dogs can be caused by bacteria or fungi.
The antibodies will help to protect against the diseases caused by these viruses or bacteria.
Antibodies destroying bacteria or any other foreign invader that threatens the system.
Antibiotics are naturally occurring metabolic products of fungi or bacteria that are used to counter bacterial infections.
Antibody, a protein produced in the blood that fights diseases by attacking and killing bacteria or viruses.
One of the many things a virus or bacteria needs to thrive is a live host.
Seems like it would be a host to a variety of infectious bacteria - or even fungus.

This phrase is incorrect in English.

"can be either bacteria and bacteria "

Using "and" in this context is not appropriate. The correct conjunction to use when presenting mutually exclusive options is "or."

Show examples from the web [+]

As regards the product's microbiological properties, the aerobic mesophilic bacteria, aciduric lactic bacteria and lactic bacteria that develop during ageing must exceed 1 × 107 colony-forming units/g.
While antibiotics including Tygacil fight certain bacteria, other bacteria and fungi may continue to grow.
On Earth, we had bacteria, and not just individual bacteria but bacteria that formed colonies, which created rocks known as stromatolites.
But might turn out to be as different from bacteria as bacteria is from us.
It acts against fungi and bacteria and is in particular useful to limit pasteurisation.
25x109 bacteria* 25x109 bacteria* 25x109 bacteria
They're the size of bacteria, but no bacteria l've seen.
However, as moxifloxacin inhibits both topoisomerase II and IV with similar activity in some Gram-positive bacteria, such bacteria may be resistant to other quinolones, but susceptible to moxifloxacin.
To take an example close to home: there are over 500 species of bacteria now known - friendly bacteria - living symbiotically in your mouth and throat probably necessary to your health for holding off pathogenic bacteria.
There's one last elephant in the room, the proteins themselves, which come from algae and bacteria and fungi, and all over the tree of life.
The trees and the grass and bacteria and mice and birds, and how they all fit together.
Biocidal products are used to protect human and animal health against harmful pests and bacteria and include household products like disinfectants, repellents and insecticides.
Now there are a hundred different ways to make a mistake and not find bacteria where there are bacteria, but there is no way to find bacteria where there are no bacteria.
The exciting phase came when we took this piece of inert chemical and put it in the bacteria, and the bacteria started to read this genetic code, made the viral particles.
The trees and the grass and bacteria and mice and birds, and how they all fit together.
DNA ties us all together, so we share ancestry with barracuda and bacteria and mushrooms, if you go far enough back - over a billion years.
Mutagenicity testing in bacteria and in rodents yielded negative results.
Wild animals are reservoirs of viruses and bacteria waiting to jump the species' barrier.
I've detected septicemia and bacteria in the decedent's lungs.
Resistance now affects the entire population of bacteria and all families of antibiotics.

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can be either bacteria or bacteria vs can be either bacteria and bacteria