the formation of gametes (n)
fusion of egg and sperm (2n)
nuclear division (2n)
always involves the fusion of egg and sperm
does not involve and egg and sperm
the central point that connects 2 chromatids
the visible mass of DNA that forms when the cell prepares to divide
homologous chromosomes which have replicated and paired off
2 chromosomes connected at a centromere (immature form)
any body cell (diploid)
egg or sperm (monoploid)
2n represents _______
n represents ________
another word for monoploid?
reproduction of the cell, a form of asexual reproduction
always results in 2 identical daughter cells
occurs constantly for some cells only a few time for others
produces sex cells; necessary for sexual reproduction
only occurs in sex organs
results in 4 cells which are monoploid
produces genetically different cells and is therefore the cause of variation among offspring
fusion of egg and sperm
restores the diploid number of chromosomes
chromosomes that code for the same traits and at the same place
in which phase of mitosis do the chromosomes double just before entering the next stage
in which phase of mitosis do the nuclear membrane and nucleolus disintegrate?
in which phase of mitosis does the centriole double and begin to move to the opposite side of the cell?
in which phase of mitosis do the spindle fibers form?
which phase are the nuclear membrane and nucleolus gone and centrioles at opposites sides of the cell?
which phase do the spindle fibers and asters form?
which phase do the chromatids connect to the spindle fibers by their centromires?
which cells do asters form in?
which phase does the centromire double?
in which phase do the chromatids separate and move to opposite ends of the spindle?
in which phase do the chromatids reach opposite ends of the cell and a furrow forms?
which phase does the nuclear membrane and nucleolus reform at each end?
when does the cell membrane begin to split?
when does the rest of the cell divide during telaphase?
which of the following is not mitosis? prophase, telophase, or interphase?
what part of meiosis is the same as mitosis?
when does synapsis occur?
because it determines which chromosomes, and therefore, character traits will be together in one sex cell.
why is the lineup of the homologous chromosome pairs so important?
what is the formation of gametes?
what is the formation of sperm?
what is the formation of eggs?
there is a stage after meiosis is complete where the sperm must grow tails and mature
how is the formation of sperm different then regular meiosis?
in both telephases the cell split unevenly making one larger then the rest, in the end only one egg is made and 3 polar bodies denigrate
how is the formation of eggs different then regular meiosis?
a cell plate
what forms instead of a furrow in a plant cell?