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Leni [432]
3 years ago
5

Some cancers are caused by mutations that stop certain proteins from working. The inactivation of whát kind or protein could lea

d to cancer? to.
a.one that sped up the cell cycle b. one that slowed down the cell cycle
C .one that acted as a growth-promoting molecule
d. one that responded to growth promoting molecules​
Biology
1 answer:
77julia77 [94]3 years ago
3 0

Answer:

The inactivation of one protein that slow down the cell cycle could lead to cancer. (option b).

Explanation:

The cell cycle is the process a cell undergoes when it divides during its life. This process includes a control mechanism to prevent normal cells from replicating more than normal, called cell cycle regulation.

In oncogenesis - the formation of malignant tumours - many factors induce the abnormal growth of a tissue by the abnormal multiplication of the cells that form it, leading to cancer. One of these factors may be a mutation in the DNA that prevents the production of regulatory proteins.

The mutation that produces exaggerated cell growth -and which can eventually lead to cancer- can create defects in a specific regulatory protein that slow down the cell cycle, so that exaggerated and uncontrolled cell replication occurs.

Once a tumor tissue has formed, successive mutations will lead to a lack of cell differentiation, the property of forming blood vessels, the ability to invade tissue and lose its apoptosis mechanism, that characterizes cancer cells.

Learn more:

Cyclines in cell cycle regulation brainly.com/question/6821354

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svetoff [14.1K]

Answer:

<em>Avoidance Learning</em>

Explanation:

<em>Avoidance learning</em>, also known as <em>escape learning</em>, is the procedure whereby a person learns  how to conduct himself or react <em>to prevent a stressful or  uncomfortable circumstance.</em>

The conduct is to prevent the scenario, or to get rid of it. It is a form of  <em>absence of punishment</em>.

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An amateur horticulturalist breeds tulips in the hopes of obtaining a flower with unique and desirable traits. After several gen
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Horticulturalist’s best option is clone the desired tulip so there will be no genetic variations.

Explanation:

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The process of cloning should be done under the supervision of expert to avoid any error which could lead to the variation in genetic structure. It is very necessary for the amateur horticulturalist who desires to have dual apps without any genetic variation to perform cloning.

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Answer:

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Recycle your rubbish and participate in or help organize recycling campaigns.

Avoid littering and participate in or help organize litter clean-ups (here you can link to a website for volunteering or starting your own beach clean-up).

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Swap toys, movies, and books instead of buying new ones.

Donate, recycle, and repair electronic devices (see how here).

Use less water when brushing teeth, taking a shower, or washing the dishes.

Use less electricity by turning off lights and electronic devices when not in use, using energy-saving light bulbs, and hanging clothes to dry.

Use public transport, share a journey with friends (e.g., car-sharing), cycle, or walk when possible.

Use less paper by not printing unnecessary things and reading e-books.

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Do not waste food and try to buy food that is grown locally and in season.

Hope this helps:)

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