Hello!
You have three checkpoints here. One at the end of G1, one at the end of G2, and one in the middle of the Mitotic stage.
Let's go through these individually.
The G1 checkpoint determines whether or not a cell should begin cell replication. It checks to see whether the cell has grown to an appropriate stage. This checkpoint is seen as the most important. Therefore, this matches with "checks for cell size and DNA damage".
The G2 checkpoint determines if a cell is ready for mitosis. This checkpoint checks whether or not replicated DNA is correct. Therefore, this one matches with "checks whether DNA has doubled and repairs it if damaged".
The M checkpoint occurs at the end of metaphase. This makes sure the chromosomes have aligned properly at the metaphase plate and makes sure the sister chromatids are correctly attached to the spindle microtubules. Therefore, this one corresponds with "checks whether the microtubules have attached to the centromeres of the chromosomes".
Hope this helps!
Answer:
Sexual reproduction
Explanation:
In asexual reproduction, the same genes are transferred to the next generation because there is no combination of genes takes place so the rate of variation is very less in asexual reproduction and in sexual reproduction combination of different genes from two different parents occurs which give rise to genetic variation.
So when the plant is put in an environment where harmful bacteria are present then it will prefer sexual reproduction to bring variation in its genome so that it can get the ability to fight against these pathogenic bacteria.
The plants that reproduced asexually will be eradicated by pathogens because they can not get the new genes to fight against the pathogen due to lack of appropriate variation in their gene.
The answer is C. have noticeably large pointed canines.
A is correct is the answer
Since the rate of flashing depends on the rate of reaction, it means that fireflies will flash slower during cold weather.
<h3>How does temperature affect rate of reactions?</h3>
Temperature affects the rate of reaction such that reactions are faster at high temperatures and slower at low temperatures.
Thus, since the rate of flashing in fireflies depends on the rate of reaction, cold temperature means that the rate of flashing will be low as compared to warm temperature.
In other words, fireflies will flash lower during cold weather and vice versa.
More on temperature and rate of reactions can be found here: brainly.com/question/16717828
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