biol 111 lab 4 KD
Terms
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copy deck
- reproduction in which one cell makes an exact copy of itself
- asexual reproduction
- a mode of asexual cell division for eukaryotes
- mitosis
- __________ participate in fertilization
- gametes
- the fusing of one gamete from each parent to produce the next generation
- fertilization
- reduces the number of chromosomes by half
- meiosis
- fungi and plans produce spores by ________
- mitosis
- cells that contain two sets of chromosomes
- diploid
- cells in which the number of chromosomes has been reduced by one half and contain only one set of chromosomes
- haploid
- meoisis starts with ________ parent cell and produces _________ daughter cells
-
diploid
haploid
- first growth phase
- the cell is growing and accumulating cytoplasmic elements
- dna is replicated in _______
- synthesis phase
- second growth phase
- cell continues to grow and prepare for division
- segregation of chromosomes
- karyokinesis
- the division of the cytoplasm and formation of new daughter cell
- cytokinesis
- each bead represents a ___________ locus on a chromosome
- locus
- the clear plastic piece in each chromosome represents the ________ region
- centromere
- two chromatids formed when the chromosome was replicated in ___ phase
- S
- chromosomes condense in the nucleus and chromatids become visible
- prophase
- nuclear membrane begins to disintegrate in what phase?
- prophase
- spindle fibers tug on the chromosomes and arrange them in the cell with all of the centromeres lined up along the spindle apparatus
- metaphase
- the chromatids of each chromosome gets pulled to opposite poles of the cells
- anaphase
-
spindle apparatus disappears and two nuclei reform
cell division occurs - telophase
- the division of the cytoplasm
- cytokinesis
- meiosis results in the production of ___ daughter cells
- 4
- DNA synthesis in ___ phase creates two-stranded chromosomes joined at the centromeres (_____)
-
S
dyads - homologous chromosomes come together and synapse along their entire length
- prophase I
- how many chromosomes does a tetrad contain
- 4
- homologous chromosomes separate and are pulled apart to opposite sides of the cell
- anaphase I
- the four different possible combinations of chromosomes in the gametes derived from a cell with a diploid number of four
- independent assortment
- interkinesis
- the events of interphase II