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hjlf
4 years ago
12

By what 2 different mechanisms could mutant phages change to become capable of lysing e. coli k

Biology
1 answer:
Agata [3.3K]4 years ago
4 0

The switching from lysogenic to the lytic cycle, also called lysogenic induction, can be caused by a double-stranded break in the prophage or can be caused by a mutagen. These factors could cause disruption of the cI & cro genes that are responsible for regulating the lytic-lysogenic cycles of bacteriophages..


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What role does natural light exposure during the day play in improving sleep? it helps to regulate circadian rhythm. it discoura
yuradex [85]

Answer: It helps to regulate circadian rhythm

Exposure to natural light during the day helps regulate the circadian rhythm, which improves sleep pattern. The term circadian rhythm refers to our biochemical, physiological and behavioral processes in approximately 1 full day cycle. Circadian rhythm plays an important role in controlling when we fall asleep and when we wake up.

During day light, the secretion of melatonin or sleep hormone is suppress by melanopsin that keeps people awake and alert. Nevertheless, during nighttime, melanopsin stimulates the release of melatonin to signal sleeping time. Therefore, this hormone works the entire day and has direct effect on the circadian rhythm, which acts as a regulator of our biological clock.

 

 


6 0
3 years ago
state and explain four precautions to be considered during the setup of the investigation on whether roots exert a pushing force
MAVERICK [17]
The plant should be de-topped at least 4 cm above the surface of the soil.
The stump of the plant is tightly fitted with the apparatus.
Tube is filled with water, not completely but at least one-fourth
Remember to note the initial water level.
Note the final water level and draw interference by calculating the difference between two levels.



8 0
4 years ago
Disadvantages and advantages of natural gas, and nuclear power.<br> giving brainliest.
k0ka [10]

Answer:the advantages of gas is that it helps the vehicles go to the place you want to go to and the disadvantage of gas is that it can start a fire

Explanation:

The advantage of nuclear power is that it helps things function and the disadvantages of nuclear power is that it can explode in the hotness

3 0
2 years ago
Which would have a bigger effect on an organism, an error during transcription or a point mutation?
kompoz [17]

Answer: Point mutation would have a bigger effect on an organism.

Explanation:

7 0
3 years ago
Compare volcano formation at different plate boundaries.
notsponge [240]

Answer:

The different ways the plates are shifting will cause different size volcanoes.

Explanation:

If the African Plate pushes harder than the Antarctic plate, the volcano at the African Plate will be larger. And a volcano is a mountain or hill, typically conical, having a crater or vent through which lava, rock fragments, hot vapor, and gas are being or have been erupted from the earth's crust due to the plates shifting.

6 0
3 years ago
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