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iVinArrow [24]
3 years ago
15

Why are onion root tips a good choice for viewing cells in different stages of the cell cycle?

Biology
2 answers:
pickupchik [31]3 years ago
5 0
They are a good choice because at any given time, you can find cells that are undergoing mitosis.
ArbitrLikvidat [17]3 years ago
3 0

Answer:

Explanation:

Hii

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The DNA is described as "Free-floating". What does this mean?
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It is freely floating.

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3 years ago
Many novel approaches are being investigated as an alternative to antimicrobial drugs. For example, researchers are testing the
Alisiya [41]

Answer:

Bacteriophage

Explanation:

Antimicrobial resistance is the leading world concern for the medicine producing companies. The antimicrobial drugs are meant to kill the microbes but microbes are also developing resistant to these drugs. So we need a high dose of that particular drug to kill the same organism next time. The antimicrobial medicines are applied to all microorganism without distinguishing them but bacteriophage is emerging as solution for the problem.

Bacteriophages are viruses that attack the bacteria. Bacteriophages are highly specific to bacterial cell and attack the receptors on the membrane of specific bacteria species. So these can be used to kill or target the specific species of bacteria instead of applying the antimicrobial drug to all bacteria.

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3 years ago
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which of the following states that heritable factors (genes) retain their identity generation after generation?
Mandarinka [93]

Answer:

particulate hypothesis of inheritance

Explanation:

This states that the inheritable factors retain their identity generation after generation.

7 0
3 years ago
The eukaryotic cell organelle that most resembles a bacterial cell is the
marishachu [46]

Answer:

mitochondria

Explanation:

Both bacteria and mitochondria have their own cell

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The driving force behind gas exchange in the body is
svlad2 [7]

Answer:

c

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Gas exchange. Gas exchange occurs as a result of respiration, when carbon dioxide is excreted and oxygen taken up, and photosynthesis, when oxygen is excreted and carbon dioxide is taken up. The rate of gas exchange is affected by: the area available for diffusion.

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