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Marysya12 [62]
3 years ago
9

What is the relationship between proto-oncogenes and oncogenes? hints what is the relationship between proto-oncogenes and oncog

enes? both are involved in arresting the cell cycle. oncogenes are mutant forms of proto-oncogenes. oncogenes are versions of proto-oncogenes that have been permanently switched off. both must be activated to halt cell division?
Biology
1 answer:
Elan Coil [88]3 years ago
7 0
Oncogenes result from turning on, or activating proto oncogenes. Proto oncogenes are genes that code for positive cell cycle regulators, so proto oncogenes code for proteins that turn on cell division. Proto oncogenes are normal genes, but when they are mutated, they become oncogenes.  Oncogenes are expressed too much, which makes them  turn on cell division too much, which is cancer. 
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Which of these best describes what occurs during cytokinesis?
larisa86 [58]
Cytokinesis occurs after mitosis is complete. It is when two daughter cells are formed, each with their own nuclei, after a single cell has <em>completely </em>divided.
3 0
3 years ago
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A student did an experiment with two identical fish tanks, Tank 1 and Tank 2. About 20 ml water purifier was added to Tank 1 and
maw [93]

Answer:

a . Fish need 10 ml of water purifier to survive.

Explanation:

Fish need 10 ml of water purifier to survive because the data of 10 ml and 20 ml purifier is the same so it is recommended to use 10 ml purifier. First the data was same but by recording next week data, it shows slightly increase in the value of tank 2 while in the last week, both has the same value so we can concluded that by using 10 ml purifier is enough for the fish to survive.

6 0
2 years ago
How would the cycle be different if there were no water on earth?
Luda [366]

Answer:

What I expect would happen: First, there would be no clouds. Lack of clouds would mean there would be no rain and the average temperature of the Earth would increase, resulting in large areas of land becoming desert.

Explanation:

The water cycle is the process where water falls as rain, is transported via rivers and streams to lakes and oceans, evaporates into the sky, condenses into clouds, and falls as rain again. Here's a diagram:

water.usgs.gov

water.usgs.gov

So what would happen if there were no condensation stage?

The condensation stage is the one where water vapour gathers together into clouds (and when the clouds become heavy enough with vapour, release water as rain). So the first answer is that there would be no clouds.

Without clouds, I foresee a few things happening:

From clouds come rain. With no clouds, there would be no rain.

Clouds move moisture from lakes and oceans (where it evaporates up) to mountains and other places inland that spark rainfall. And so vast stretches of land would become desert.

Clouds reflect sunlight and help cool the Earth. With no clouds, the average temperature of the Earth would increase significantly.

And so to summarize what I expect would happen. First, there would be no clouds. Lack of clouds would mean there would be no rain and the average temperature of the Earth would increase, resulting in large areas of land becoming desert.

Explanation:

4 0
3 years ago
How many oceans are their on earth
snow_tiger [21]

Answer:

The answer to your question is 4. The earth has four oceans.

Explanation:

The four oceans that we have are: The Pacific, Atlantic, Indian, and Arctic.

Hope this helped! God bless.

4 0
3 years ago
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meriva

Injury to cervical vertebra c 3-c 4 is particularly problematic because C) the phrenic nerve that serves the diaphragm receives its fibers from here.

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learn more about cervical vertebra here: brainly.com/question/20840479

#SPJ1

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