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Biology
Biology Chapter 5 Test - Mitosis and Meiosis
46
Science
9th Grade
11/24/2015

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Term
Mitosis cell division produces ______ cells.
a. boy b. girl c. sister d. daughter
Definition
d. daughter
Term
Interphase consists of 3 stages. What are they?
Definition
G1, S, G2
Term
What is the division of the nucleus called?
Definition
mitosis
Term
4. What is the division of the cytoplasm called?
Definition
cytokinesis
Term
What happens in the G1 phase?
Definition
cell grows and develops
Term
What happens in the S phase of interphase?
Definition
replication of DNA
Term
What happens in the G2 phase of interphase?
Definition
prepares for mitosis
finishes up growing process
Term
What phase accounts for 90% of the cells development in the cell cycle?
Definition
interphase
Term
In what phase of mitosis do the chromosomes line up in middle?
Definition
metaphase
Term
In what phase of mitosis do the chromatids get pulled apart by the centrioles?
Definition
Anaphase
Term
When does cytokinesis begin?
Definition
at the end of telophase
Term
Are gametes haploid or diploid in number?
Definition
haploid
Term
When does crossing over occur?
Definition
prophase 1
Term
How many phases are there in mitosis?
Name them
Definition
4
Prophase, Metaphase, Anaphase, Telophase
Term
When are sex cells formed- mitosis or meiosis?
Definition
meiosis
Term
Mitosis occurs in the _____ of a cell.
Definition
nucleus
Term
What kind of cell is produced in mitosis? diploid or haploid
Definition
diploid
Term
What kind of cell is produced in meiosis? diploid or haploid
Definition
haploid
Term
Who determines the sex of a child? Why?
Definition
Dad - He can give an X or Y
Term
The Cell cycle allows for a cell to ...
Definition
grow, repair itself, reproduce
Term
In mitosis, what happens in prophase?
Definition
chromatin condenses thickens and forms chromosomes
centromeres attach to spindle fiber
Term
What are the two parts of the cell cycle?
Definition
Interphase and cell division
Term
What are the two stages of cell division?
Definition
mitosis and cytokinesis
Term
What is a chromosme?
Definition
It contains the genetic material of the organism
Term
What is the difference between a centromere and a chromatid?
Definition
Centromere - holds chromatids together
Chromatids - contains the genetic information, 2 make up a chromosome
Term
Nuclear division is also called _____
Definition
mitosis
Term
Gametes are _____ cells.
Definition
sex (sperm and egg)
Term
Where are haploid cells prduced in the body of males and females?
Definition
males - testicles
females - ovaries
Term
How many chromosomes do humans have in their body cells?
Definition
46 or 23 pairs
Term
What happens when you add a haploid and a haploid cell together?
Definition
you get a diploid cell
Term
Are your skin cells are diploid or haploid?
Definition
diploid
Only haploid cells are sex cells
Term
What is crossing over?
Definition
Exchange of genetic information between chromosomes
Term
When does crossing over occur?
Definition
Prophase 1
Term
T or F The centromere can be located at different points on the chromosome.
Definition
True - The centromere can be located at different points on the chromosome
Term
What makes haploid cells? mitosis or meiosis
Definition
meiosis
Term
How many stages are there is meiosis?
Definition
2 stages
Term
How many stages are in mitosis?
Definition
one
Term
T or F Crossing over occurs in mitosis.
Definition
False - in meiosis only
Term
T or F In human males, all four haploid sperm cells are capable of fertilizing an egg
Definition
true - all four
Term
T or F All four eggs produced in meiosis are capable of fertilization.
Definition
False - only one of the four form an egg cell
Term
T or F Interphase occurs BEFORE mitosis and meiosis begin
Definition
True
Term
mitosis or meiosis - Which one produces 2 cells?
Definition
mitosis
Term
Meiosis or mitosis - which one produces 4 different daughter cells
Definition
meiosis
Term
T or F In mitosis, the nucleus divides only once.
Definition
True
Term
T or F In meiosis, the nucleus divides twice
Definition
True
Term
T or F More cells in your body are made by mitosis than meiosis.
Definition
True
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