AP BIOLOGY

LABORATORY REVIEW

MITOSIS AND MEIOSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What stage is the cell growing, developing, and replicating DNA?
A
metaphse 1
B
metaphse 2
C
anaphase 1
D
interphase
Explanation: 

Detailed explanation-1: -During interphase, the chromosomes are decondensed and distributed throughout the nucleus, so the nucleus appears morphologically uniform. At the molecular level, however, interphase is the time during which both cell growth and DNA replication occur in an orderly manner in preparation for cell division.

Detailed explanation-2: -During interphase, the cell grows and DNA is replicated. During the mitotic phase, the replicated DNA and cytoplasmic contents are separated and the cell divides.

Detailed explanation-3: -Interphase is composed of G1 phase (cell growth), followed by S phase (DNA synthesis), followed by G2 phase (cell growth).

Detailed explanation-4: -The G1 phase stands for gap 1 and is when organelles replicate and the cell grows. The S phase stands for synthesis and is when DNA is replicated.

Detailed explanation-5: -DNA replication occurs during the synthetic phase of the Interphase. During the S phase, the DNA replicates, and the histone protein synthesis occurs. The centrioles also get duplicated. a) During prophase, nuclear membrane and nucleolus disappear.

There is 1 question to complete.