Answer check: Did your figure look like the figure below?
|G |g
| |
mother cell's genotype = GgTtRR
|t |T
| |
|R |R
arrangement of genes on chromosomes
|G |g
|G |g
| |
| |
|t |T
and
|t |T
two daughter cells
| |
| |
(both GgTtRR)
|R |R
|R |R
arrangement
of genes of both sets of chromosomes
How can two daughter cells that have the same number of chromosomes and identical genes as the mother cell form from a single mother cell?
The DNA (chromosomes) duplicate during late interphase right before
chromosome formation and segregation.
k 
The figure above represent the single mother cell. Note the genetic
makeup (AaBb). The figure to the right is the mother cell after the S stage
of mitosis. Note the genetic makeup (AAaaBBbb). Examine the figure below
after mitosis forming two daughter cells. Note the genetic makeup
of each daughter cell is (AaBb).
k
Draw these in your notes.
Read behavioral objective 12. Check to see if you can identify the following stages of mitosis.
Click here to continue. click
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Last modified October 22, 1997.