EXERCISE 7 MITOSIS

Question 1

Stages of Mitosis

Answer 1

Prophase
Metaphase
Anaphase
Telophase
Interphase or Metabolic Phase

Question 2

Called as the Equatorial plate stage since the chromosomes converge at the equatorial reguion or the mid point between the two centrioles

Answer 2

Metaphase

Question 3

The centromeres divide separating the sister chromatids. Each of the sister chromatid will move to the opposite poles. An equal number of chromatids are found in the opposite poles of the cell. This stage ends with the appearance of the cleavage furrow at the equator of the cell

Answer 3

Anaphase

Question 4

The chromosomes unwind and become thread-like. The nucleoli and the nuclear membrane reform. Spindle fibers disappear as the nuclear membrane reappears. The cleavage furroe continues to dip into the equator until the cell is finally divided into two daughter cell

Answer 4

Telophase

Question 5

This stage is divided into three phases G1,S,G2

Answer 5

Interphase or metabolic phase

Question 6

Migration of a pair of centriole on the opposite side of the nucleus

Answer 6

Prophase

Question 6

Disappearance of the nuclear membrane

Answer 6

Prophase

Question 7

during the later part of the prophase stage, the chromosome appears as two rod like structures attached to a common centromere

Answer 7

Prophase

Question 8

Appearance of short radiating rays forming an aster about each centriole

Answer 8

Prophase

Question 9

Appearance of a spinde fibers between the centriole and chromosomes

Answer 9

Prophase

Question 10

Which stage has the highest frequency

Answer 10

Prophase because it is where chromatin condenses into chromosomes and nuclear envelope breaks down

Question 11

Why stage has the lowest frequency

Answer 11

Anaphase because it is where the sister chromatids break apart and the chromosomes begin moving to opposite ends of the cell