CELL DIVISION
MEIOSIS AND GENETIC VARIATION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Mitosis
|
|
|
Interphase
|
|
|
Meiosis
|
|
|
Anaphase
|
Detailed explanation-1: -The Synthesis phase involves replication of DNA.
Detailed explanation-2: -In the eukaryotic cell cycle, chromosome duplication occurs during “S phase” (the phase of DNA synthesis) and chromosome segregation occurs during “M phase” (the mitosis phase).
Detailed explanation-3: -DNA replicates in the S phase of the cell cycle and initiates at specific regions in the DNA sequence known as DNA replication ‘origins’.
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 takes place during the ‘S’ phase (synthesis phase) of the cell cycle. ‘S’ phase is followed by ‘M’ phase or mitosis phase, where chromosomes segregate.