CELL STRUCTURES AND FUNCTION
CELL DIVISION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
What is the first stage of the cell cycle before cell division begins?
|
|
Interphrase
|
|
|
Replication
|
|
|
Metaphase
|
|
|
Telophase
|
Explanation:
Detailed explanation-1: -G1 is the stage where the cell is preparing to divide. To do this, it then moves into the S phase where the cell copies all the DNA.
Detailed explanation-2: -Interphase is composed of G1 phase (cell growth), followed by S phase (DNA synthesis), followed by G2 phase (cell growth).
Detailed explanation-3: -The first step of cell division is prophase, during which the nucleus dissolves and the chromosomes begin migration to the midline of the cell. (Some biology textbooks insert a phase called “prometaphase” at this point.)
Detailed explanation-4: -Interphase is defined by three stages: the first gap phase (G1), the synthesis (S) phase, and the second gap (G2) phase.
There is 1 question to complete.