Question

1. what is the main purpose of mitosis in multicellular organisms?

to produce gametes for sexual reproduction.
to create genetic variation.
for growth, repair, and replacement of cells.
to produce haploid cells.
question 12
1 pts

1. when observing a stained cell under a microscope, the chromosomes appear as tangled, thread - like structures. in which stage of the cell cycle is this cell most likely found?

anaphase
metaphase
prophase
interphase

Explanation:

• Question 11:
• Mitosis is a process of cell division that results in two daughter cells with the same number of chromosomes as the parent cell. In multicellular organisms, it is mainly for growth (increasing the number of cells), repair (replacing damaged cells), and replacement of cells (as old cells die).
• Meiosis is the process that produces gametes (sex cells) for sexual reproduction and creates genetic variation (through crossing - over and independent assortment). Haploid cells are produced by meiosis, not mitosis.
• Question 12:
• In interphase, the cell is in a non - dividing state. The chromosomes are in a less condensed form, appearing as tangled, thread - like structures called chromatin.
• In prophase, chromosomes start to condense. In metaphase, chromosomes are highly condensed and align at the equatorial plate. In anaphase, sister chromatids separate.

Answer:

1. For growth, repair, and replacement of cells.
2. Interphase.