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3 years ago

Which one of the following accurately describes the Lac operon?

2 answers:

8 0

D. The repressor is freed from the operator when lactose is present.
Think of a bacteria that comes into contact with some lactose sugar in milk. Normally it's not in milk, so the gene is repressed (prevented) from making the lac enzyme (which digests lactose). Now when it comes across some milk, it wants to make as much lac as possible to eat up all the lactose.
FYI: trp for tryptophan works the exact opposite with repressor blocking when trp IS PRESENT.

Butoxors [25]3 years ago

8 0

D is the answer other ones are incorrect

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Answer:

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Explanation:

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3 years ago

List and describe the four types of wellness goals.

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3 years ago

Research suggests that eating lots of fruits and vegetables may provide some protection against several types of cancer. Studies

Delicious77 [7]

Answer:

So is; It has been shown, for example, in breast cancer that women who eat a lot of fruits and vegetables every day may have a lower risk of breast cancer, especially aggressive tumors, than those who consume less vegetables, according to a new study conducted by researchers at the TH Chan School of Public Health in Boston, United States. Cruciferous vegetables such as broccoli and yellow and orange vegetables stand out especially.

Explanation:

The plant-based foods that the researchers studied for cancer prevention are:

 Cruciferous vegetables. They include broccoli, cauliflower, cabbage, Brussels sprouts, Chinese cabbage, and green cabbage. Frequent consumption of these foods is associated with a reduced risk of cancer.

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- Esophagus cancer.

-Stomach cancer.

Several laboratory studies suggest that cruciferous vegetables help regulate enzymes that protect against cancer. Studies also show that cruciferous vegetables can stop the growth of cancer cells in other ways. But these effects can differ between cells, laboratory animals, and people.

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3 years ago

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drek231 [11]

Answer now it is easier for animals to adapt

Explanation:

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7nadin3 [17]

Answer:

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Hope this helps you. Do mark me as brainliest.

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3 years ago