Download Cell Division and Reproduction

NAME____________________________
Cell Reproduction – Mitosis and Meiosis Outline
Period________
Need For Reproduction
 ________________ is the life process in which __________ things produce other
____________ things of the same ____________.
 _______________ is not _____________ for the life of one individual _________.
 It is _____________ for the continued _______________ of a particular group of
_____________________.
Cell Division
 All _________ arise from other ________ by cell ______________.
 When ___________ grow to a certain ___________ they must either __________
or __________.
 If a cell continued to __________ without ____________, the surface __________
of the ___________ would become too _________ to hold the cell’s ___________.
Cell Division
 Cell _____________ is a complex series of __________ in the __________ of a cell
that leads to the _____________ of _________ new __________.
 The new __________ are called _________________ cells.
 The ______________ of the daughter cells are usually ______________ to each
other and to that of the _____________ cell.
 The _______________ cells _________ and increase in ______ until they
___________ and produce __________ more ___________ cells.
 This process __________________, resulting in organism __________ and
__________________.
Mitosis
 All cells in the __________ (except _______ cells) are produced by the process of
_____________ cell division.
 __________ involves a complex series of ___________ in the _________ of body
cells that produce ______________ (same) ______________ cells.
o They have the __________ number and __________ of
___________________ as the _______________ cells.
The Cell Cycle – Stages of Mitosis
 Although the events of _____________ are an ongoing process, they are
generally described in terms of separate ___________, or ___________.
o __________________
o __________________
o __________________
o __________________
o __________________
Interphase
 ________________ is the period _____________ cell
_______________.
 During _______________, the single-stranded _____________
replicate (make an extra __________).
 The ________________ cannot be seen during _______________.
Prophase
 In _______________, the double-stranded chromosomes become
___________, and the _____________ membrane
__________________.
 A _______________ apparatus, consisting of ___________,
forms between opposite ________ of the cell.
Metaphase
 During ________________, the _________________ move
toward the ________ of the cell and ________
up at the cell ____________ (midline).
Anaphase
 During ___________, the double-stranded chromosome ______________ and
move to __________________ poles of the cell.
 There is a complete ________ of chromosomes at each
_________ of the cell.
Telophase and Cytoplasmic Division
 The last stage of mitosis is ________________.
 In telophase, a _______________ membrane forms
around each set of __________________, forming two identical _________. At
the end of mitosis, the ________________ divides, forming ______ new identical
___________ cells.
The Cell Cycle
Meiosis
 The process of ______________ involves ______ cell divisions and produces cells
that are ______________ from the ___________ cell.
o _____________ produces cells that have _____________ the number of
____________________ as the ____________ cells.
o If _____________ did not take place, the _______________ egg would have
________________ the amount of ________________ it needs.
 Meiosis takes place during ______________ reproduction when ______ cells,
called the _______ and ________, are produced in ______ organs.
Meiosis
 One-half the number of ____________________ is called the ______________,
(or n) number.
o In humans, the ___________________ number (n) is _______.
 When the _________ and _________ unite during _______________, the species
normal chromosome number called the ______________ or (2n) number is
restored (brought back).
o The ______________ number in humans is __________.
o ____ (sperm) + _____ (egg) = ______
Comparison of Mitosis and Meiosis
Characteristic
Number of daughter cells
Number of cell division
Daughter cells are
diploid or haploid
Daughter cells are identical or different
Parent cell is
diploid or haploid
Mitosis
Meiosis