AP BIOLOGY

LABORATORY REVIEW

MITOSIS AND MEIOSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In cytokinesis in animals:
A
a cleavage furrow forms and pinches cell in half to form two daughter cells.
B
a cellular wall forms to support the cell.
C
a cellular membrane surrounds the organelles.
D
a new daughter cell forms.
Explanation: 

Detailed explanation-1: -During cytokinesis in animal cells, a ring of actin filaments forms at the metaphase plate. The ring contracts, forming a cleavage furrow, which divides the cell in two.

Detailed explanation-2: -Cytokinesis is the final act of cell division. In a typical animal mitosis, a cleavage furrow forms at the equatorial cortex after anaphase. This furrow then advances inwards to separate the two daughter cells.

Detailed explanation-3: -Cytokinesis is the physical process that finally splits the parent cell into two identical daughter cells. During cytokinesis, the cell membrane pinches in at the cell equator, forming a cleft called the cleavage furrow.

Detailed explanation-4: -During cytokinesis in an animal cell the cell membrane is pinched in half by a belt of protein threads. During cytokinesis in plant cells a cell plate forms down the middle of the dividing cell.

There is 1 question to complete.