anaphase 1

prophase 1

prophase 2

telophase 1

1

2

3

4

tetrad (pair of chromosomes, one from mom and one from dad)

triad

diploid

quad (group of 4 replicated chromosomes, 2 from mom and 2 from dad)

metaphase 2

anaphase 2

metaphase 1

telophase 1

When the chromosomes line up in pairs, each daughter cell will receive twice the number of chromosomes as the parent cell.

When the chromosomes line up in pairs, each daughter cell will receive half the number of chromosomes as the parent cell.

When the chromosomes line up in pairs, the DNA is protected from damage and cannot mutate.

When the chromosomes line up in pairs, the DNA in each chromosome is exactly the same.