CELL STRUCTURES AND FUNCTION
CELL CYCLE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
The cell grows by producing more proteins and organelles.
|
|
|
DNA replication occurs.
|
|
|
The cell grows and prepares for cell division with the appearance of centrosomes.
|
|
|
Mitosis and cytokinesis occurs.
|
Detailed explanation-1: -The S phase of a cell cycle occurs during interphase, before mitosis or meiosis, and is responsible for the synthesis or replication of DNA. In this way, the genetic material of a cell is doubled before it enters mitosis or meiosis, allowing there to be enough DNA to be split into daughter cells.
Detailed explanation-2: -The S phase of the cell cycle occurs before the interphase and is involved in DNA synthesis or replication. In this way, the genetic material of the cell is replicated before entering mitosis or meiosis, leaving enough DNA to divide into daughter cells. S phase is not initiated until the cell passes the G1 phase.
Detailed explanation-3: -M phase (mitosis) is usually followed by cytokinesis. S phase is the period during which DNA replication occurs.
Detailed explanation-4: -Two key events take place, during S-phase in animal cells, DNA replication and duplication of centriole.