bio homework lab

Mitosis/Meiosis Review

This review will go over various parts of the chromosomes, cell cycle, mitosis and meiosis. We would of done a pop bead experiment in lab and then looked at microscope slides to help recognize the phases.

Watch the following video using pop beads for mitosis and meiosis:

https://www.youtube.com/watch?v=zGVBAHAsjJM

Chromosomes

Above is a human karyotype. Please answer the following questions:

1. Which chromosome pair number(s) are the autosomes?

2. Which chromosome pair number(s) are the sex chromosomes?

3. What abnormality do you observe in this karyotype?

4. Using the slides from class, what is the name of this condition?

5. What is the difference between haploid and diploid? Give a cell type example for each?

Cell Cycle/Mitosis

1. Label the parts of the cell cycle diagram and stages of mitosis and describe what is happening in each stage. Note: for this diagram you will need to combine both prophase and prometaphase into the same letter on the diagram.

A
B
C
D
E
F
G
H
I
J

Meiosis

1. Identify each phase of Meiosis ( 8 points)

D

B

A

C

H

G

F

E

A.

B.

C.

D.

E.

F.

G.

H.

2. Explain what is crossing over and what phase does it occur in during meiosis?

3. In what stage do the homologous chromosomes separate in meiosis? In what stage do the sister chromatids separate in meiosis?

ID microscope slides

Identify which cells are in: Interphase, prophase, metaphase, anaphase, and telophase below.

A.

B.

C.

D.

E.