Mitosis and Meiosis

Interphase is when a cell is growing, replicating its DNA, and carrying out cell processes. Which of these is correct regarding its occurrence?

• It occurs once before mitosis and once before meiosis.

• It occurs once before mitosis and twice before meiosis.

• It occurs once before mitosis and does not occur before meiosis.

• It does not occur before mitosis and occurs once before meiosis.

Which cell type is not produced in meiosis?

• Gametes

• Body cells

• Sperm cells

• Egg cells

Why is crossing over important?

• This process ensures that chromosomes are evenly divided into daughter cells.

• This process can lead to genetic variation in daughter cells.

• This process can create gaps in the chromosome DNA for RNA to bind.

• The process allows for spindles to connect to the chromosomes in order to pull chromosomes apart.

A fertilized human egg cell (sperm and egg cell combined) would create a cell with _____ chromosomes.

• 46

• 4

• 23

• 100

Mitosis is important for all of the following EXCEPT

• organism growth.

• repair of damage.

• replacement of worn out cells.

• generation of gametes.

What is the splitting of the cell's cytoplasm that occurs after telophase called?

• Cytoskeleton

• Prophase

• Cytokinesis

• Crossing over

Resulting cells in meiosis are...

• identical to the starting cell and different from each other.

• different from the starting cell and different from each other.

• identical to the starting cell and identical to each other.

• different from the starting cell and identical to each other.

Which of the following is NOT a somatic cell?

• Sperm cell

• Skin cell

• Muscle cell

• Red blood cell

Another term(s) for gametes are

• fertilization and zygotes

• sperm and eggs

• eggs and mitosis

• meiosis and mitoses

A zygote is formed from the combining of two ____________.

• eggs

• identical cells

• gametes