Meiosis Notes

​Like mitosis - the extended version. Exclusive only for reproductive cells...

Meiosis

Multiple Select

Which of the following cells are considered sex cells?

• Egg Cells

• Sperm Cells

• Stomach Cells

• Ovary Cells

Multiple Choice

MITOSIS creates _ cells. MEIOSIS creates _ cells.

• 4, 2

• 2, 4

• 2, 2

• 4, 4

Multiple Choice

Which of the following is true of the chromosomes in a homologous pair?

• They both came from the organism's mother.

• They both came from the organism's father.

• One chromosome came from the organism's parents.

• Neither chromosome came from the organism's parents.

Multiple Choice

During Anaphase in MITOSIS ___ separates.

During Anaphase 1 in MEIOSIS ___ separates.

• Chromosomes, Homologous chromosomes

• Chromatids, Homologous Chromosomes

• Chromatids, Chromosomes

• They both separate chromatids

Multiple Choice

How many homologous pairs are in each cell?

• 1 pair in each cell

• 2 pairs in each cell

• 1/2 a pair in each cell

• 2 pairs of pears

Multiple Choice

Hooray! 2 new cells were made! Is meiosis done yet?

• Yes!

• Not yet!

Multiple Choice

Why don't the chromosomes replicate/copy again?

• The copy machine is broken

• The chromosomes are still inside the nucleus so they can't replicate

• The cell doesn't have enough energy to replicate DNA again

• The ending cells would end up with too much DNA

Multiple Choice

Homologous Chromosomes must line in up in metaphase during Meiosis I AND II.

• True!

• False, only in Meiosis I

• False, only in Meiosis II

Multiple Select

What was separated in Anaphase II of Meiosis?

• Chromatids

• Chromosomes

• Homologous Chromosomes

• Centrioles

Chromatids vs chromosomes can be confusing.

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Write this down if you need to!

Multiple Choice

Why is it important to have each new cell have HALF the DNA a body cell has when making sex cells?

• During reproduction the sex cells will combine to create an embryo with a full set of DNA

• Because it takes 2 eggs cells to make an embryo so it will end up with 3 sets of DNA

• Because humans reproduce asexually so when it does mitosis all the DNA will double in each cell when making the new human

• Because each cell will have the DNA duplicated again in the 3rd round of meiosis

​As you watch, answer the questions on page 29 in your Unit 6: Cell Division: Mitosis & Meiosis Packet.

Enjoy!

Go to schoology & watch the U6: Mitosis vs Meiosis EdPuzzle