AP BIOLOGY

CELL DIVISION

CELL DIVISION AND CANCEROUS CELLS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which is NOT true of the phases of the cell cycle?
A
During G1 phase, the organelles double.
B
During G2 phase, growth occurs.
C
During S phase, the DNA is replicated
D
During M phase, mitosis occurs.
Explanation: 

Detailed explanation-1: -<br> a. During ‘G (1)‘ phase there is active synthesis of RNA and proteins but no change in its DNA content <br> b. In synthesis or S phases, each chromosome carriers a duplicate set of genes <br> c.

Detailed explanation-2: -DNA replication takes place in S phase.

Detailed explanation-3: -The first growth phase (G1): During the G1 stage, the cell doubles in size and doubles the number of organelles. The synthesis phase (S): The DNA is replicated during this phase. In other words, an identical copy of all the cell’s DNA is made.

Detailed explanation-4: -Final answer: Cell is metabolically active, grows but does not replicate its DNA is the correct statement.

There is 1 question to complete.