Question

if crossing over occurs, how many cells resulting from one round of mitosis will be unique, and how many cells resulting from one round of meiosis will be unique? (assume that the parent cell contains one homologous pair of chromosomes.) 50% of cells from mitosis; 50% of cells from meiosis 0% of cells from mitosis; 100% of cells from meiosis 0% of cells from mitosis; 50% of cells from meiosis 50% of cells from mitosis; 100% of cells from meiosis

Explanation:

Mitosis is a process of asexual cell - division that produces two genetically identical daughter cells from one parent cell, regardless of crossing - over. Meiosis is a process of sexual cell - division. When crossing - over occurs in meiosis (even with one homologous pair of chromosomes), the resulting four daughter cells are all genetically unique due to the exchange of genetic material between homologous chromosomes.

Answer:

B. 0% of cells from mitosis; 100% of cells from meiosis