Producing New Cells Flashcards
What is cell divison called
Mitosis
What does the chromosome compliment mean
That every species has a definite and characteristic number of chromosomes in each cell
How many chromosomes does a normal human cell have
46
What does haploid mean
1 set of chromosomes
What does diploid mean
2 matching sets of chromosomes
What is mitosis used for
The growth and repair of damaged cells
Why do we need the chromosome compliment
To not lose any information
Stages in mitosis
Parent cells
Chromosomes make identical copies of themselves
Chromosomes line up along equator
Spindle fibles form from the poles attach to chromatid
Spindle fibres pull chromosomes apart
Cytoplasm divides
2 identical daughter cells form
Sperm cells specialised feature and function
Long tail so it can swim fast to fuse with egg
Nerve cells specialised feature and function
Connections at each end so it carries electrical signals around the body