Question

The result of mitosis is that the daughter cells end up with the same number of chromosomes that the parent cell had. Another way to maintain the number of chromosomes would be to carry out cell division first and then duplicate the chromosomes in each daughter cell. Do you think this would be an equally good way of organizing the cell cycle? Why do you suppose that evolution has not led to this alternative?

Place the terms on the left to the appropriate blanks in the paragraph to complete the sentences.

spread
advantageous
mutations
would be
could
deletions
would not be
parent
breaks in chromosomes
eliminated
disadvantageous
couldn't
daughter


The two resulting daughter cells________completely identical if divide first and then duplicate chromosomes. The replication that occurs after division would generate_______, which_______ be repaired according to the________ cell. In this case, the genetic information________inherited less accurately. This way of cell division would be_______for organisms and would likely be______.

Answer 1

Dividing cells first and then duplicating chromosomes would lead to mutations and deletions that could result in inaccuracies in genetic information, making this method of cell division disadvantageous.

Step-by-step explanation:

The two resulting daughter cells would not be completely identical if divided first and then duplicate chromosomes. The replication that occurs after division would generate mutations and deletions, which could not be repaired according to the parent cell. In this case, the genetic information could be inherited less accurately. This way of cell division would be disadvantageous for organisms and would likely be eliminated by natural selection.

The two resulting daughter cells could be completely identical if they divide first and then duplicate chromosomes. The replication that occurs after division would generate deletions, which would not be advantageous and couldn't be repaired according to the parent cell. In this case, the genetic information would be inherited less accurately. This way of cell division would not be beneficial for organisms and would likely be eliminated.