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LenKa [72]
3 years ago
10

What would be the result of a mutation that deactivates the regulatory gene of a repressible operon in an escherichia coli cell?

Biology
1 answer:
leonid [27]3 years ago
7 0

The correct answer is: B) continuous transcription of the structural gene controlled by that regulator

A regulatory gene is gene that encodes for a protein, such as a repressor (or activators) that controls the transcription of another gene or group of genes.

The regulatory gene of a repressible operon encodes for the repressor that inhibits gene transcription. So, when that repressor isn’t active, transcription occurs continuously.

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Read each question carefully, and answer yes or no to each one. At the end of each section, follow the directions to score your
Nataly_w [17]

Answer:

Section 1: Physical Fitness

Do you exercise or play a sport for at least 30 minutes three or more times a week? Yes

Do you stretch before and after exercising? No

Do you warm up before exercising and cool down afterward? No

Do you think that you are at a healthy weight? Yes

Are you mostly happy with the way your body looks and feels? Yes

Do you think you have enough energy? Yes

Give yourself one point for each No response and two points for each Yes response. Section score: _10___

Section 2: Family History

Do you have a family member who:

has high blood pressure? Yes

has diabetes? Yes

has heart disease? No

has cancer? Yes

is extremely overweight? No

Give yourself one point for each Yes response and two points for each No response. Section score: ___7_

Section 3: Hygiene and Medical Care

Do you floss your teeth every day? Yes

Do you brush your teeth at least twice a day? Yes

Do you visit the dentist at least once a year? Yes

Do you use sunscreen? No

Do you know basic first aid? Yes

Are all your immunizations current? Yes

Do you get your vision and hearing checked each year? Yes

Do you see the doctor for a check-up once each year? Yes

Do you feel you get enough sleep at night? Yes

Do you know the warning signs for cancer? No

Give yourself one point for each No response and two points for each Yes response. Section score: _18___

Section 4: Nutrition

Do you eat a lot of red meat or eggs? No

Do you add salt to your food? Yes

Do you add sugar to your food? Yes

Do you eat a lot of high-fat or high-sugar foods? Yes

Do you add butter or cheese to your food? Yes

Do you choose fried foods more often than baked or broiled foods? Yes

Do you drink caffeinated drinks, such as coffee or sodas? Yes

Do you skip meals? No

Give yourself one point for each Yes response and two points for each No response. Section score: _10___

Section 5: Drug Use

Do you smoke or chew tobacco? No

Do you drink alcohol? No

Have you ever used marijuana or other illegal drugs? No

Have you ever abused a prescription drug? No

Give yourself zero points for each Yes response and two points for each No response. Section score: __8__

Section 6: Safety

Have you ever ridden with drivers who were under the influence of alcohol or drugs? No

Have you ever ridden with drivers who speed or disobey traffic laws?no

Do you ever forget to wear your seat belt? No

Do you ever forget to wear a helmet when riding a bike or skateboarding? No

Do you ever play with matches or hazardous materials? No

Is there a gun in your house? No

Give yourself zero points for each Yes response and two points for each No response. Section score: __12__

Section 7: Emotional and Social Health

Do you have hobbies or activities that you enjoy? Yes

Do you give your best effort when doing your work? Yes

Do you find it easy to laugh? Yes

Do you express anger in an appropriate way? Yes

Do you easily fall asleep at night? Yes

Do you share personal problems with someone you trust? Yes

Do you feel well-liked by others? Yes

Do you have someone you can turn to if you need help? Yes

Are your family members and close friends in good health? Yes

Are you generally happy? Yes

Give yourself one point for each No response and two points for each Yes response. Section score: _20___

Total Health Score: __85__

This is mine so it's not going to be accurate for you but please can I get a brainliest.

4 0
3 years ago
How is waste management playing a role in energy conservation?
Natalija [7]
Reduction in the amount of energy consumed in a process or system, or by an organization or society, through economy, elimination of waste, and rational use. (e.g. turning lights out when you leave the room)
3 0
3 years ago
Metabolism is a broad term that includes all chemical reactions that occur within body cells. It includes breaking down substanc
Anna11 [10]

Answer:

The statement that is false is <u>metabolism is regulated largely by the nervous system.</u>

Explanation:

The metabolism reactions are controlled by the enzymes specific for each metabolic reactions. After a signal is generated, specific enzymes that detect the signal starts up the metabolic reactions.

When there is a need to stop a certain metabolic reaction, then the mechanism of feedback inhibition is used which stops the enzyme from carrying out any further reactions. Hence, the statement that metabolism is regulated largely by the nervous system is false.

8 0
4 years ago
PLZZZZZ HELP ASAP!!! Explain the process of natural selection in your own words DO NOT COPY FROM INTERNET!!!
Rashid [163]

Answer:

If for example food becomes scares for a group of birds they must now eat something else. these birds have two different beaks on large for the food currently going becoming spars and the other just small enough for them to eat the smaller nuts and survive. The birds who can not eat the small nuts will die and then the small beaked birds will become more abundant.

Explanation:

6 0
3 years ago
The rate of species loss has ____ dramatically since the onset of the industrial revolution.
Igoryamba
Has increased dramatically. this because industrialization has resulted in released of global warming gases that have consequently led to global warming i.e increase in temperature to the levels that some species cannot survive. in addition industrialization has led to increased demand of energy which has led to mining of energy sources such as coal. this mining has resulted to destruction of habitat of some animals and and plants leading to extinction of some. 
8 0
3 years ago
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