Chapter 8 Study Guide (Page 3 of 4) in pdf

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Section 3 – Meiosis

20. Write the phase of meiosis shown in the box below the picture.

1. Anaphase I – You can tell because there is

only one cell going through the process so it

must be meiosis I; the chromosomes are being

separated so it is anaphase.

2. Anaphase II – There are two cells going

through the phase so it is meiosis II; the

chromotids are being separated so it is

anaphase.

3. Prophase I – There is only one cell so it is

meiosis I; there are tetrads lined up together so

it is prophase.

4. Metaphase I – There is only one cell so it is

meiosis I; the tetrads (that is what the box is

showing you) are lined up in the middle so it is

metaphase.

5. Metaphase II – There are two cells so it is

meiosis II; the chromosomes are lined up in

the middle so it is metaphase.

6. Telophase I – There is only one cell going through the phase so it is meiosis I; it is pinching in to separate so

it is telophase.

7. Prophase II – There are two cells so it is meiosis II; the two cells have x-shaped chromosomes that are not

lined up in the center so it is prophase.

8. Telophase II – There are four cells so it means that it is meiosis II and telophase.

21. For each phase listed below, list what happens to the chromosomes. Be descriptive using the

following words at least once.

a. Prophase I:

Chromosomes condense to form x-shaped chromosomes. Homologues pair up to form

tetrads. Crossing over occurs.

Metaphase I:

Tetrads line up in the center of the cell.

c. Anaphase I:

Tetrads are separated, being pulled to opposite sides of the

cell.

d. Telophase I:

X-shaped chromosomes on each side of the cell are separated as the cell begins to pinch in

and divide the

cytoplasm.

e. Prophase II:

X-shaped chromosomes are attached to spindle fibers.

Metaphase II:

X-shaped chromosomes line up the center of the cell.

g. Anaphase II:

Sister chromatids are pulled apart toward opposite ends of the cell.

Telophase II:

The chromosomes are separated by the cell membrane pinching in and then finally

cytokenesis.

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Chapter 8 Study Guide Page 3

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