Mitosis, Meiosis, Brain, Immune

Why don't cells just stretch when you grow, instead of making copies of themselves?

• The muscles in the cells can't stretch that far.
• The cell won't be able to bring in food fast enough or get waste out fast enough.
• The cell membrane doesn't like the feeling of stretching.
• The lysosomes don't want to work so hard.

What is the purpose of Mitosis?

• Growth and development of an organism and repair of damaged tissue

• To help the body get rid of extra cells

• To make new haploid cells

• To get rid of the nucleus

When a skin cell divides, each daughter cell contains organelles, including a nucleus. The nucleus contains a certain number of chromosomes. What would be the best statement about the number of chromosomes in a daughter cell in your skin?

• Each daughter cell has the same number of chromosomes as the parent cell

   

• Each daughter cell has half the number of chromosomes as the parent cell

•   Each daughter cell has twice the number of chromosomes as the parent cell

     

• Each daughter cell has four times the number of chromosomes as the parent cell

How would you describe the two resulting cells after mitosis?

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

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

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

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

A cell has 10 chromosomes. It undergoes mitosis. How many chromosomes will each of the new cells have?

• 5

• 10

• 15

• 20

What process does a multi-cellular organism use to replace its damaged body cells?

• mitosis
• meiosis
• replication
• transcription

John and Lauren are conducting an experiment on the cell cycle. A diagram of the cell cycle is shown below.

In their experiment they treated a cell with chemicals that blocked the (S) Synthesis phase.  What would most likely be the immediate result of John and Lauren’s experiment?

• The DNA would not replicate

   

   

• Cell division would not occur

• The cell would not grow to mature size

• Damaged DNA could be passed on to daughter cells

Place these cells in order of mitosis.

• A, B, C, D, E
• B, E, D, A, C
• C, E, A, D, B
• B, D, A, E, C

What does process on the left represent? Right?

• Left: meiosis
  Right: meiosis
• Left: meiosis
  Right: cloning
• Left: mitosis
  Right: meiosis
• Left: mitosis
  Right: mitosis

A male shark has 40 chromosomes in each of its sex cells. How many would be present in its body cells?

• 20
• 40
• 80
• 160