Question

at the end of meiosis i there are four cells. before entering meiosis each parent cell had seven pairs of homologous chromosomes. the four cells now enter meiosis ii. how many cells result? how many (total) chromosomes exist in each cell? how many chromatids make up each chromosome?

Explanation:

Step1: Find total cells post meiosis II

Each of the 4 cells from meiosis I divides once in meiosis II.
$4 \times 2 = 8$

Step2: Calculate chromosomes per cell

Parent cell had 7 homologous pairs = 14 total chromosomes. Meiosis I reduces chromosome number by half, so cells entering meiosis II have 7 chromosomes each. Meiosis II separates chromatids but does not change chromosome count.
Chromosomes per cell = $7$

Step3: Determine chromatids per chromosome

Meiosis II separates sister chromatids, so after meiosis II, each chromosome consists of 1 chromatid.
Chromatids per chromosome = $1$

Answer:

1. 8 cells result from meiosis II.
2. Each cell has a total of 7 chromosomes.
3. Each chromosome is made up of 1 chromatid.