Meiosis

Question 1

What are the differences between mitosis and meiosis?

Answer 1

MITOSIS:
* 1 parent cell leading to 2 daughter cells
* for cellular growth, repair and development
* parent cells have diploid number of chromosomes
* PMAT x1

MEIOSIS:
* 1 parent cell leading to 4 daughter cells
* for the production of gametes/sex cells
* parent cells have haploid number of chromosomes
* PMAT x2

Question 2

What are the steps in cell division?

Answer 2

I - Interphase (DNA Replication)
P - Prophase (condense)
M - Metaphase(chromosomes align along the middle and crossover)
A - Anaphase (spindle fibres pull apart the chromosomes by the centromere to each pole of the cell)
T - Telophase (cell pinches in the middle)
Cytokinesis - cell seperates into 2

Question 3

What is the difference between the parent cells in mitosis and meiosis?

Answer 3

PARENT CELLS
* mitosis begins with one parent cell with 46 chromosomes
* meiosis begins with two identical daughter cells (from mitosis) with 23 chromosomes in each

Question 4

What is the difference between Anaphase in mitosis and meiosis?

Answer 4

ANAPHASE
* during Anaphase I (mitosis) the spindle fibres are pulling apart the 2 chromosomes - results in 23 chromosomes on each side of the cell
* during Anaphase II (meiosis) the spindle fibres are pulling apart the 2 chromatids - results in 23 chromatids on each side of the cell

Question 5

What is the difference between the daughter cells produced in mitosis and meiosis?

Answer 5

MITOSIS:
* 2 identical, haploid daughter cells produced
MEIOSIS:
* 4 genetically different, haploid daughter cells produced