AP BIOLOGY

CELL DIVISION

MEIOSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Check all of the following that DO occur during Telophase I and cytokinesis.
A
The separated homologous chromosomes are at opposite poles of the cell.
B
The cell divides in two.
C
The chromosomes do not uncoil, since they are getting ready for Meiosis II.
D
Sister chromatids are pulled away from each other.
Explanation: 

Detailed explanation-1: -During telophase I, the chromosomes are enclosed in nuclei. The cell now undergoes a process called cytokinesis that divides the cytoplasm of the original cell into two daughter cells. Each daughter cell is haploid and has only one set of chromosomes, or half the total number of chromosomes of the original cell.

Detailed explanation-2: -The final two events of M phase are the re-forming of the nuclear envelope around the separated sister chromatids and the cleavage of the cell. These events occur in telophase and cytokinesis, respectively.

Detailed explanation-3: -Cytokinesis begins in anaphase and ends in telophase, reaching completion as the next interphase begins. The first visible change of cytokinesis in an animal cell is the sudden appearance of a pucker, or cleavage furrow, on the cell surface.

Detailed explanation-4: -Telophase I is that phase when the chromosomes have finished moving to opposite ends of the cell. This will then be followed by cytokinesis producing two daughter cells. After cytokinesis, the two daughter cells would have genetically different chromosomes after meiosis I.

There is 1 question to complete.