Mitosis Flashcards
What is Dna
the molecule that transfers hereditary
information from one cell to the next.
what does Dna do when a cell is dividing
DNA winds up tightly and forms
chromosomes in the nucleus of the cell.
what is a gene
A specific portion of the
DNA code which has genetic
information.
Where are genes contained
The chromosome
what does a chromosome do before mitosis occurs
it duplicates
when does the chromosome condense and shorten
at the start of mitosis
what are duplicated chromosomes called
sister chromatid
how many chromosomes do humans have
46
what are somatic cells
diploids
what is a diploid
contains 2 sets of chromosomes
what are gamete cells
haploid
what is a haploid
a cell with one set of chromosomes
what does mitosis produce
2 diploids daughter cells
interphase
DNA replicates
Prophase
diffuse chromatin
condenses into discrete chromosomes
Prometaphase
chromosome
movement toward the “equatorial plane”
Metaphase
chromosomes are
lined up at the equatorial plane (also
called the metaphase plate)
Anaphase
Sister chromatids
disjoin and migrate to opposite poles.
Telophase
chromosomes decondense
and a cleavage furrow begins to form in the
middle of the cell. Finally, the cell divides in
two, this is called cytokinesis.
