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Varvara68 [4.7K]
3 years ago
13

Which of the following relies on amolecule binding to the repressor to prevent the repressor from binding to the operator?

Biology
1 answer:
Vesnalui [34]3 years ago
7 0

Answer:

d. induction

Explanation:

A repressor is a protein capable of inhibiting target gene expression by binding to both operator sites and gene silencers. A DNA-binding repressor inhibits the interaction between the RNA polymerase and the DNA promoter sequence, thereby suppressing transcription into RNA. Moreover, the RNA-binding repressor is a protein that binds to the messenger RNA (mRNA) molecule in order to prevent its translation into protein. An inducer can start transcription by interacting with the repressor, thereby separating it from the DNA operator sequence.

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How do we save water​
nignag [31]

1. Shower Bucket. Instead of letting the water pour down the drain, stick a bucket under the faucet while you wait for your shower water to heat up. You can use the water for flushing the toilet or watering your plants.

2.  Turn off the tap while brushing your teeth. Water comes out of the average faucet at 2.5 gallons per minute. Don’t let all that water go down the drain while you brush! Turn off the faucet after you wet your brush, and leave it off until it’s time to rinse.

3. Turn off the tap while washing your hands. Do you need the water to run while you’re scrubbing your hands? Save a few gallons of water and turn the faucet off after you wet your hands until you need to rinse.

4. If it’s yellow, let it mellow. This tip might not be for everyone, but the toilet is one of the most water-intensive fixtures in the house. Do you need to flush every time?

5. Fix your leaks. Whether you go DIY or hire a plumber, fixing leaky faucets can mean big water savings.

6. Re-use your pasta cooking liquid. Instead of dumping that water down the drain, try draining your pasta water into a large pot. Once it cools, you can use it to water your plants. Just make sure you wait, because if you dump that boiling water on your plants, you might harm them.

7. Head to the car wash. If you feel compelled to wash your car, take it to a car wash that recycles the water, rather than washing at home with the hose.

8. Cut your showers short. Older shower heads can use as much as 5 gallons of water per minute. Speed things up in the shower for some serious water savings.

9. Choose efficient fixtures. Aerating your faucets, investing in a low-flow toilet, choosing efficient shower heads, and opting for a Water Sense rated dishwasher and washing machine can add up to big water savings.

10. Shrink your lawn. Even better: lose the lawn completely. Instead, opt for a xeriscaped landscape that incorporates water wise ground cover, succulents, and other plants that thrive in drought conditions.

11. Don’t run the dishwasher or washing machine until it’s full. Those half-loads add up to gallons and gallons of wasted water.

12. Keep an eye on your bill to spot leaks. If your water bill spikes suddenly, there’s a good chance that a leak is the culprit. Call in a plumber to check your lines to save water and cash!

13. Install a rain barrel. Rainwater harvesting is a great way to keep your plants hydrated without turning on the hose or sprinkler.

14. Flush with less. Older toilets use a lot of water. You can reduce your usage by sinking a half gallon jug of water in the toilet tank. Do NOT use a brick, because it will break down and the sediment can damage your tank.

15. Water outdoor plants in the early morning. You’ll need less water, since cooler morning temperatures mean losing less water to evaporation. It’s not a great idea to water in the evenings, since this can promote mold growth.

16. Hand-washing a lot of dishes? Fill up your sink with water, instead of letting it run the whole time that you’re scrubbing.

17. Use less electricity. Power plants use thousands of gallons of water to cool. Do your part to conserve power, and you’re indirectly saving water, too!

18. Wash Fido outdoors. That way, you’re watering your yard while you’re cleaning your pup. Just make sure that the soap you’re using isn’t harmful to your plants!

19. Skip the shower from time to time. Do you really need to shower multiple times a day or even daily? Skipping even one shower a week adds up to big water savings.

20. Re-use grey water. Check to make sure that this is legal where you live, but in some areas you can do things like re-route the runoff from your clothes washer and use that water for things like flushing the toilet.

hope this helps!

3 0
3 years ago
The proliferation of angiosperms is because they are __________.
myrzilka [38]

<u>Answer</u>:

The proliferation of angiosperms is because they are Adaptable.

<u>Explanation</u>:

Angiosperms are those produces the gametes in the separate organs, those are present inside the flower. The embryo development and fertilisation takes place inside the anatomical structure, which provides a stable system of in sexual reproduction which will be sheltered from environmental fluctuation. For the example of co-evolution relationship between pollinator and flower characteristic will be considered. Most of them are mutualistic pollinator, having distinct features.  

3 0
3 years ago
Which scenario would most likely cause a mass extinction?
Eva8 [605]
<h3><u>Answer;</u></h3>

A. global temperatures drop several degrees after several massive volcanic eruptions

<h3><u>Explanation;</u></h3>
  • <em><u>A mass extinction refers to a widespread and a rapid decrease in the Earth's biodiversity. </u></em>
  • <em><u>Mass extinctions may occur due to a number of reasons which includes, asteroid impacts, climate change, massive volcanic eruptions or a combination of all these causes. </u></em>
  • <em><u>An example of mass extinction was during the Mesozoic Era, that led to the extinction of dinosaurs, about 65 million years ago.</u></em>
6 0
3 years ago
Read 2 more answers
Antibodies to common microorganisms have been developed by _____?
Oduvanchick [21]
Antibodies to common microorganisms have been developed by infancy. <span>An </span>antibody<span> (Ab), also known as an immunoglobulin (Ig), is a large, Y-shaped protein produced mainly by plasma cells that is used by the immune system to identify and neutralize pathogens such as bacteria and viruses.</span>
5 0
3 years ago
Read 2 more answers
The partial displacement of a bone from its joint is known as
saul85 [17]

Answer:

subluxation.

Explanation:

Subluxation is the partial displacement of a bone from its joint.

Dislocation is complete displacement of a bone from its joint.

Luxation is complete separation of joints.

Sublocation generally return to its normal position without the help from orthopedic doctor.

Example; Nursemaid's elbow caused by subluxation of head of radius from annular ligament.

4 0
3 years ago
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