Meiosis Practice

Practice with the concepts and vocab that were presented in today's class by completing this formative. You will have an idea of how you did immediately (minus the few open ended questions). If you struggle as for help in zoom!

PART 1- Phase Identification

Use your notes, the class slides, or your book to help you identify the phases. Match the image of each phase on the left to the correct phase name on the right.

8

Match the number of each phase in the diagram above to the phase of meiosis that is shown.

Draggable item		Corresponding Item
		Prophase I
		Anaphase II
		Metaphase I
		Metapase II
		Telophase/cytokinesis II
		Anaphase I
		Interphase
		Prophase II

PART 2- Multiple Choice/Vocab Practice

Use your notes, the class slides, or your book to help you identify the phases. Match the image of each phase on the left to the correct phase name on the right.

1

Gametes are produced by the process of

crossing over

mitosis

replication

meiosis

1

Gametes have

twice the number of chromosomes found in body cells

two sets of chromosomes

one copy of each chromosome

homologous chromosomes

1

What is shown in the image above? Hint it GREATLY increases the genetic variety of the gametes!

replication

independent assortment

anaphase I of meiosis

crossing over

1

Chromosomes form tetrads AKA homologous pairs during which phase?

interphase

anaphase II of meiosis

metaphase I of meiosis

prophase I of meiosis

1

At the end of meiosis, there are

two haploid daughter cells

two diploid daughter cells.

four diploid daughter cells.

four haploid daughter cells.

1

How many chromosomes are in a human gamete?

26

46

43

23

1

If a eukaryotic cell has 20 chromosomes and it undergoes meiosis, how many cells will result, and how many chromosomes will they contain?

2 cells, each with 10 chromosomes

4 cells, each with 20 chromosomes

4 cells, each with 10 chromosomes

2 cells, each with 20 chromosomes

1

Cells that are ________ possess a single set of chromosomes

haploid

zygotes

somatic

diploid

1

You have homologous pairs of chromosomes in each of your cells. In what way are these pairs of chromosomes similar?

They both come from the same parent

They have exactly the same genetic information

They will stay together during meiosis

They have genes for the same traits

1

From the list below, which choice represents a correct difference between sperm production and egg production?

Sperm are produced by meiosis; eggs are produced by mitosis.

Sperm are produced by mitosis; eggs are produced by meiosis

Sperm are produced by somatic (body) cells; eggs are produced by gametes

Four mature sperm are produced from one cell; four cells are made in females but only 1 is nurtured to become a viable egg cell.

1

At the end of meiosis II, the daughter cells created are ____.

diploid

haploid

1

Though the stages of meiosis have the same names as the stages of mitosis, they exhibit fundamental differences. What are the main differences between the two processes?

Meiosis differs from mitosis in that the number of chromosomes is halved and genetic variation is introduced in meiosis, but not in mitosis

Metaphase and telophase portions of meiosis and mitosis are the same. Meiosis and mitosis are also the same, except for the number of chromosomes. Anaphase I and anaphase are different.

Meiosis differs from mitosis in that the number of chromosomes is halved and genetic variation is reduced in meiosis, but not in mitosis.

Prophase and telophase portions of meiosis and mitosis are the same. Meiosis II and mitosis are also the same and have the same number of chromosomes. Anaphase I and anaphase are different.

1

Meiosis occurs to produce which type of cell or cells. Select ALL that are true!

PART 3- Fill in the Blank with a Word Bank

Use your notes, the class slides, or your book to help you fill in the blank with the term or number that correctly completes the statement.

Completion

Complete each statement with a word from the word bank below. BE SURE TO SPECIFIY IF THE STAGE IS OCCURING IN MEIOSIS I or MEIOSIS II!!!

half double Prophase I Prophase II Metaphase I Metaphase II Anaphase I Anaphase II gametes somatic cells

2 4 19 20 38 40

1

An organism has 38 chromosomes in a body cell. After mitosis each cell has 38 chromosomes. After meiosis each gamete has ____________________ chromosomes.

1

An organism’s gametes have ____________________ the number of chromosomes found in the organism’s body cells.

1

Sister chromatids inside both cells get separated during this phase

1

Tetrads, or homologous pairs, line up along the equator during this phase

1

At the end of meiosis I, ________ daughter cells are created.

PART 4- Karyotype Practice

Use what you know to answer the questions about each karyotype.

1

What can you tell about the person that this karyotype is from? Choose ALL that apply.

1

What can you tell about the person that this karyotype is from? Choose ALL that apply.

This person has one extra chromosome

This person is missing one chromosome

The cell the DNA was taken from was in G1 phase of cell cycle

The person is male

The person is female

The cell the DNA was taken from has gone through S phase

Nondisjunction occurred in one of the gametes used to make this person

PART 5- Short Answer

Answer the questions below completely to the best of you ability.

1

Why does meiosis have two cell divisions? (HINT: Think of chromosome number) Why is this important for reproduction?

1

Explain why the daughter cells produced by meiosis are genetically different from each other, whereas the daughter cells produced by mitosis are not.

1

Meiosis Practice

Meiosis Practice

Meiosis Practice

Meiosis Practice

Match the number of each phase in the diagram above to the phase of meiosis that is shown.

Gametes are produced by the process of

Gametes have

What is shown in the image above? Hint it GREATLY increases the genetic variety of the gametes!

Chromosomes form tetrads AKA homologous pairs during which phase?

At the end of meiosis, there are

How many chromosomes are in a human gamete?

If a eukaryotic cell has 20 chromosomes and it undergoes meiosis, how many cells will result, and how many chromosomes will they contain?

Cells that are ________ possess a single set of chromosomes

You have homologous pairs of chromosomes in each of your cells. In what way are these pairs of chromosomes similar?

From the list below, which choice represents a correct difference between sperm production and egg production?

At the end of meiosis II, the daughter cells created are ____.

Though the stages of meiosis have the same names as the stages of mitosis, they exhibit fundamental differences. What are the main differences between the two processes?

Meiosis occurs to produce which type of cell or cells. Select ALL that are true!

An organism has 38 chromosomes in a body cell. After mitosis each cell has 38 chromosomes. After meiosis each gamete has ____________________ chromosomes.

An organism’s gametes have ____________________ the number of chromosomes found in the organism’s body cells.

Sister chromatids inside both cells get separated during this phase

Tetrads, or homologous pairs, line up along the equator during this phase

At the end of meiosis I, ________ daughter cells are created.

What can you tell about the person that this karyotype is from? Choose ALL that apply.

What can you tell about the person that this karyotype is from? Choose ALL that apply.

Why does meiosis have two cell divisions? (HINT: Think of chromosome number) Why is this important for reproduction?

Explain why the daughter cells produced by meiosis are genetically different from each other, whereas the daughter cells produced by mitosis are not.

When in life does meiosis occur in girls? In boys?

Match the number of each phase in the diagram above to the phase of meiosis that is shown.

Gametes are produced by the process of

Gametes have

What is shown in the image above? Hint it GREATLY increases the genetic variety of the gametes!

Chromosomes form tetrads AKA homologous pairs during which phase?

At the end of meiosis, there are

How many chromosomes are in a human gamete?

If a eukaryotic cell has 20 chromosomes and it undergoes meiosis, how many cells will result, and how many chromosomes will they contain?

Cells that are ________ possess a single set of chromosomes

You have homologous pairs of chromosomes in each of your cells. In what way are these pairs of chromosomes similar?

From the list below, which choice represents a correct difference between sperm production and egg production?

At the end of meiosis II, the daughter cells created are ____.

Though the stages of meiosis have the same names as the stages of mitosis, they exhibit fundamental differences. What are the main differences between the two processes?

Meiosis occurs to produce which type of cell or cells. Select ALL that are true!

An organism has 38 chromosomes in a body cell. After mitosis each cell has 38 chromosomes. After meiosis each gamete has ____________________ chromosomes.

An organism’s gametes have ____________________ the number of chromosomes found in the organism’s body cells.

Sister chromatids inside both cells get separated during this phase

Tetrads, or homologous pairs, line up along the equator during this phase

At the end of meiosis I, ________ daughter cells are created.

What can you tell about the person that this karyotype is from? Choose ALL that apply.

What can you tell about the person that this karyotype is from? Choose ALL that apply.

Why does meiosis have two cell divisions? (HINT: Think of chromosome number) Why is this important for reproduction?

Explain why the daughter cells produced by meiosis are genetically different from each other, whereas the daughter cells produced by mitosis are not.

When in life does meiosis occur in girls? In boys?