Structures: Necessary for Cell Division
The Cell Cycle
Mitosis
Meiosis 1
Meiosis 2
100
Name the structure labeled A
What is the Centromere
100
During what phase of interphase does DNA replicate
What is S - Phase
100
These cells divide by the process of mitosis
What are Somatic or Body Cells, or What are all cells besides reproductive cells (gametes)
100
During which phase in meiosis do homologous chromosomes condense, the nuclear envelope dissolves, and spindle fibers form?
What is Prophase I
100
When during meiosis do sister chromatids separate?
What is Anaphase 2
200
Name the structure labeled at the arrow
What are Spindle Fibers
200
Cell Division is represented by the letter __________ in the diagram?
What is the letter D
200
During which phase of mitosis do the chromosomes line up along the middle of the dividing cell?
What is Metaphase
200
If an organism’s diploid number is 24, its haploid number is ________
What is 12
200
What type of cell undergoes meiosis?
What are reproductive cells or gametes
300
Name the structure labeled at the arrow
What is a Centriole
300
These are the phases of the cell cycle in the correct sequence.
What is Interphase (G1, S-Phase, G2) (Mitosis) Prophase, Metaphase, Anaphase, Telophase, Cytokinesis
300
The cytoplasm divides during which phase?
What are Telophase and Cytokinesis
(They occur together).
300
What is depicted here?
What is Crossing Over
300
The Product of Meiosis is _____ _____ _____
What are 4 haploid cells
400
Name the structure labeled at B
What are Chromatids or Sister Chromatids
400
This is the longest phase of the Cell Cycle
What is Interphase
400
If a cell has 32 chromosomes, how many chromosomes will each of its daughter cells have after mitosis?
What are 32 chromosomes
400
Chromosomes form tetrads during
_______________
What is Prophase 1
400
During which phase of meiosis II do the chromosomes line up in the middle of the cell?
What is Metaphase II
500
What is the name of the structure formed when two homologous chromosomes come together
What is a tetrad
500
As a cell grows, its _________ increases more than its ____________
What is volume, what is surface area
500
Plants form a ________________
during cytokinesis.
What is a cell plate
500
Why is meiosis a necessary process? Explain using human cells as your example.
What is Meiosis halves the number of chromosomes in reproductive cells. This allows the egg and sperm to unite and create a zygote with 46 chromosomes, not 92.
500
What is the genotypic ratio of the cross of RR x rr?
What is 100% Rr