Name: __________________________________________________________________ Date: _________________ Period: _______
Meiosis Tutorial
A) Go to my website
B) Click “Biology Tutorials”
c) Answer the questions below by reading through the tutorial.
CLICK “GET STARTED”
1)
Why must cells perform mitosis? _____________________________________________________________________________________
2)
Define MITOSIS. __________________________________________________________________________________________________
3)
Define DIPLOID. __________________________________________________________________________________________________
4)
How many total chromosomes do humans have? ________________________________________________________________________
5)
How many pairs of chromosomes do humans have? _____________________________________________________________________
INTERPHASE
6)
What do cells do during interphase? __________________________________________________________________________________
7)
The DNA of a cell is used to create ______________________________.
8)
What is the job of the following cells?
9)
a.
Red blood cells: ___________________________________________________________________________________________
b.
Nerve cells: ______________________________________________________________________________________________
c.
Stomach cells: ____________________________________________________________________________________________
What are the loose strands of DNA called? _____________________________________________________________________________
10) How many strands of DNA are in the animated cell at the start? ____________________________________________________________
11) What happens to DNA during the S Stage? _____________________________________________________________________________
PROPHASE OF MITOSIS
12) What is the purpose of DNA condensing into chromosomes? ______________________________________________________________
13) What happens to the nucleus during prophase? _________________________________________________________________________
METAPHASE OF MITOSIS
14) Where do the spindle fibers attach when they connect to the chromosomes? _________________________________________________
15) What happens to the chromosomes during metaphase? __________________________________________________________________
ANAPHASE OF MITOSIS
16) What are the two halves of chromosomes called? _______________________________________________________________________
17) What happens to the chromosomes during anaphase? ___________________________________________________________________
TELOPHASE OF MITOSIS
18) Define CYTOKINESIS. _______________________________________________________________________________________________
19) The chromatids unwind into loose strands called ____________________________________.
20) What grows during telophase? ______________________________________________________________________________________
21) What is created when mitosis is finished? ______________________________________________________________________________
22) Define SOMATIC. _________________________________________________________________________________________________
23) Give three examples of somatic cells. _______________________;_______________________;_______________________
24) List two cells that are NOT created by mitosis. ________________________;________________________
MITOSIS QUIZ
25) Complete the five practice questions in the quiz.
NOW FOR MEIOSIS
26) Define MEIOISIS. __________________________________________________________________________________________________
27) Define HAPLOID. __________________________________________________________________________________________________
28) How many chromosomes do human haploid cells possess? ________________________________________________________________
29) Define GAMETE. __________________________________________________________________________________________________
30) What is another name for the egg cell? ________________________________________________________________________________
GERM CELLS
31) Name the diploid cells that go through meiosis. _________________________________________________________________________
32) Where can male germ cells be found? ____________________________
Female germ cells? _______________________
INTERPHASE
33) How many strands of DNA are in the animated cell to start? ___________
PROPHASE 1 OF MEIOSIS
34) What happens to the nucleus during Prophase 1? _______________________________________________________________________
35) What happens to chromosomes during synapsis? _______________________________________________________________________
36) Tetra is a prefix that means _______________.
37) A tetrad is made from _____________ chromatids.
CROSSING OVER
38) What causes small portions of chromosome of break during crossing over? ___________________________________________________
39) Why is crossing over important? _____________________________________________________________________________________
METAPHASE 1 OF MEIOSIS
40) Tetrads are pulled to the _________________________.
ANAPHASE 1 OF MEIOSIS
41) What happens to tetrads during anaphase 1? ___________________________________________________________________________
TELOPHASE 1 OF MEIOSIS
42) What regrows during telophase 1? ___________________________________________________________________________________
43) Which process divides the cell? ______________________________________________________________________________________
PROPHASE 2 OF MEIOSIS
44) What is the purpose of meiosis? _____________________________________________________________________________________
45) Name two things that happen during prophase 2.
a.
_________________________________________________
b. _________________________________________________
METAPHASE 2 OF MEIOSIS
46) Where do the chromosomes end during metaphase 2? ___________________________________________________________________
ANAPHASE 2 OF MEIOSIS
47) What happens to chromosomes during anaphase 2? _____________________________________________________________________
TELOPHASE 2 OF MEIOSIS
48) Which process splits the 2 cells into 4 cells? ____________________________________________________________________________
49) What will regrow? _________________________________________________________________________________________________
50) DNA uncoils/unwinds into strands called __________________________________.
51) How many:
a.
strands of DNA were in the animated cell at the start (examine question 33)? _______________
b.
strands of DNA are in the four cells at the end? ______________
MEIOSIS REVIEW QUIZ
1)
In which event are chromosomes paired with one another? _______________________________________________________________
2)
The loose, linear strands of DNA are known as _______________________.
3)
Which statement about meiosis was FALSE? ____________________________________________________________________________
4)
During which event will chunks of one chromosome break away and connect to another chromosome? ____________________________
5)
Which cell would be created by meiosis? _____________________________________
6)
When does synapsis and crossing over happen during meiosis? _________________________________
7)
In relation to meiosis, what are germ cells? ____________________________________________________________________________