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goldfiish [28.3K]
3 years ago
10

When examining cells in the laboratory, you notice that a particular cell has half as much DNA as the surrounding cells. It appe

ars that this cell's cell cycle halted at checkpoint _____.
Biology
1 answer:
kow [346]3 years ago
4 0

Answer:

G1 checkpoint

Explanation:

The cell cycle consists of the series of activities that occurs from the replication of DNA to the actual division of the cell in an organism's cell. However, the cell has been internally programmed to ensure that all conditions are in place/favorable before allowing progression into the next stage of the cell cycle. This internally controlled mechanism ia called CHECKPOINTS. This checkpoint occurs at three main stages of the cell cycle;

after G1 phase, G2 phase and during M phase.

In the G1 checkpoint, the cell ensures that the cell is in the right shape to proceed into the Synthesis phase of the cell cycle where it will double it's DNA. The checkpoint checks majorly for damage or change to the DNA before replicating it. If any error is found, that cell is halted and prevented from proceeding to the S-phase of the cell cycle.

This is the case in the question, the cell has been halted and prevented from entering the S-phase. Hence, its DNA is still the same as it started. However, the DNA of the cells surrounding it has been doubled as they have undergone DNA replication during S-phase.

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Hatshy [7]

Answer:

All organisms that have life, both plants and animals.

Explanation:

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Murrr4er [49]

Answer:

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Explanation:

base on research.. hope it helps

6 0
3 years ago
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tensa zangetsu [6.8K]

Answer:

Burning fossil fuels add pollution in the air and also its not a renewable source.

Explanation:

When you burn fossil fuels (oil, Coal, And much more) chemicals can pollute the air sorrunding the area. which causes climate change and more.

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Integrating gene expression with summary association statistics to identify genes associated with 30 complex traits
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Which of the following statements is true?
Lisa [10]

Answer: All membrane lipids are amphipathic

Explanation:

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The structure is made of phosphorus and lipids and hence called as phospholipids.

The amphipathic nature of the lipids allows it to assemble spontaneously into bi layers even under the artificial conditions.

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