Show:
The Cell Cycle
Mitosis
Meiosis
Genetic Variation
Mitosis vs Meiosis
100
What is Cytokineses, and when in the cell cycle does it occur? 
The M phase
100
What Phase concludes nuclear division?
Telophase
100
How many divisions does meiosis have?
2
100
What form of reproduction does genetic variation fall under?
Sexual Reproduction
100
What is the Chromatin number in a parent cell before division begins in Mitosis and Meiosis I and II?
92
200
Between Mitotic divisions, cells are in what phase?
Interphase
200
What are the two steps that occur at the beginning of Prophase?
Nucleoli disappears and the chromatin condenses into chromosomes.
200
if a cell has 46 chromosomes at the beginning of meiosis, then at anaphase there would be a total of
46 chromosomes
200
During this phase, nonsister chromatids of homologous chromosomes exchange pieces of genetic material.
Prophase I
200
What separate roles do Mitosis and Meiosis play?
Mitosis: Cell replacement, organism growth, and asexual reproduction. Meiosis: Sexual reproduction
300
What is the difference between the S phase and the G1 phase?
Besides growth, the S phase duplicates the DNA.
300
The mitotic spindle is assembled during what phase?
Prophase
300

What is a point at which paired chromosomes remain in contact during the first metaphase of meiosis, and at which crossing over and exchange of genetic material occur between the strands?

What is Chiasmata
300
independent assortment of homologues occurs in what stage of meiosis?
Metaphase I
300
Mitosis occurs in what kind of cells?
Somatic
400
Growth and preparation for cell division occurs in this phase.
G2
400
What are micro-tubules and what do they do?
Provide structure, pull apart chromosomes to opposite poles. 
400
True or False. Chiasmata and crossing over occurs during both Prophase I and Prophase II. Explain Why
False. Crossing over only needs to happen once in order for genetic material to be exchanged.
400
what are the three factors that contribute to genetic variation?
What is crossing over, independent assortment of homologues, and random joining of gametes.
400
Crossing over does not occur in what processes?
Mitosis and Meiosis II
500
Interphase consists of which stages of the cell cycle?
G1, S, and G2
500
How does a cell become cancerous?
Mutations disrupt the replication signals, leading to unchecked division and preventing apoptosis (cell death). 
500
There are 20 chromosomes in an animal cell about to divide. How many chromosomes will there be in its daughter cell after Meiosis? 
10
500

Describe the law of independent assortment

 When two or more characteristics are inherited, individual hereditary factors assort independently during gamete production, giving different traits an equal opportunity of occurring together

500
In mitosis, chromosomes line up on the Metaphase plate. How do chromosomes line up during Meiosis I and Meiosis II?
Homologues pairs line up during Metaphase I. Chromosomes line up during Metaphase II.