MEDIUM
AS and A Level
IMPORTANT
Earn 100
Outline how mitosis allows asexual reproduction to take place.
Important Questions on The Mitotic Cell Cycle
MEDIUM
AS and A Level
IMPORTANT
Draw a simple diagram of a cell that contains chromosomes at the metaphase of mitosis.
MEDIUM
AS and A Level
IMPORTANT
Draw a simple diagram of a cell that contains chromosomes at anaphase of mitosis.
MEDIUM
AS and A Level
IMPORTANT
State two functions of centromeres during nuclear division.
HARD
AS and A Level
IMPORTANT
Thin sections of adult mouse liver were prepared and the cells stained to show up the chromosomes. In a sample of 75000 cells examined, 9 were found to be in the process of mitosis. Calculate the length of the cell cycle in days in mouse liver cells, assuming that mitosis lasts one hour.
HARD
AS and A Level
IMPORTANT
As a result of mitosis, all 200+ different types of cells contain the same set of genes as the zygote. Genes control the activities of cells. What did this suggest about the mechanism by which cells become different?
HARD
AS and A Level
IMPORTANT
Research is being carried out into ways of inactivating the enzyme telomerase in cancer cells. Explain the reason behind this.
EASY
AS and A Level
IMPORTANT
During prophase of mitosis, chromosomes consists of two chromatids. At which stage of cell cycle is the second chromatid made?
HARD
AS and A Level
IMPORTANT
Growth of cells and their division are balanced during the cell cycle. Which of the following shows the consequences that would follow from the two errors shown in the given table?
| Errors |
| Speeding up the growth rate without speeding up the cell division |
| Speeding up the cell division without speeding up the growth rate. |
