A-Which of the following is NOT completed during interphase? 1. Microtubule-orga
ID: 8825 • Letter: A
Question
A-Which of the following is NOT completed during interphase?
1. Microtubule-organizing centers are replicated.
2. DNA is replicated.
3. Chromosomes begin condensing.
4. Organelles are replicated.
5. Cytoskeleton disassembles.
B-In prokaryotic genome replication and cell division a battery of enzymes copies the DNA of each strand until the entire circle is copied. After the genome has been replicated,
1. The cell approximately doubles its size, inducing cell division
2. A new plasma membrane and cell wall are laid down, dividing the cell into two
3. the two daughter genomes are attached, side by side, to the plasma membrane
4. all of these
5. none of these
Explanation / Answer
Answer
A) Chromosomes begin condensing
During the prophase, the genetic material is duplicated and the chromosomes condense, but they are still attached to the centromere.
Therefore, the correct answer is optio (3).
B) Cell division is relatively simple in prokaryotes, The cell divides by binary fission. Just before the cell divides, the DNA is copied and this process is known as DNA replication. Then, the chromosomes seggregate and move to opposite poles and then, a new plasma membrane and a cell wall starts growing into the center of the cell, and the cytoplasm split apart, forming two daughter cells that are identical to each other and to the parent cell.
Therefore, the correct answer is option (2).
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