Mitosis & Meiosis

What is the primary function of mitosis?

Growth, repair, and replacement of cells.

Give an example of mitosis in action.

Skin cell replacement after sunburn or dryness.

How often are intestinal lining cells replaced by mitosis?

Every 3-4 days.

How many chromosomes are present at the start and end of mitosis?

Starts and ends with 46 chromosomes.

What is the key takeaway about mitosis?

Mitosis is for non-reproductive cell division.

What is the primary function of meiosis?

Reproductive cell division.

What does meiosis create?

Gametes (sex cells) such as spermatozoa and eggs.

Where does meiosis occur in the body?

In the primary reproductive organs (gonads): testes in males and ovaries in females.

How many chromosomes do gametes contain?

23 chromosomes (half of the genetic material).

What is the chromosome number in daughter cells produced by meiosis?

23 chromosomes.

What type of genetic exchange occurs in meiosis?

Involves exchange of genetic material (recombination).

How do daughter cells produced by mitosis compare genetically?

Produces identical daughter cells with the same chromosome number (46).

How do daughter cells produced by meiosis compare genetically?

Produces genetically unique daughter cells with half the chromosome number (23).