Question

Choose the WRONG statement from the following:

1. During mitosis, ER and nucleolus begin to disappear at late telophase
2. During cell division in apical meristem, the nuclear membrane appears in telophase
3. Mitotic anaphase differs from meta-phase in having same number of chromosomes and half number of chromatids
4. 14 mitotic divisions are required for making a single cell to produce 128 cells

• A. ii, iii
• B. iii only
• C. None of these
• D. ii only

Answer 1

Answer:

A. ii, iii

• Mitosis is the process by which a single parent cell divides to make two new daughter cells.

• Each daughter cell receives a complete set of chromosomes from the parent cell.

• This process allows the body to grow and replace cells.

• Mitosis consists of four basic phases: prophase, metaphase, anaphase, and telophase.

• Prophase – The chromosomes shorten and thicken.

• Metaphase – Chromosomes line up in the middle of the cell.

• Anaphase – Chromatids break apart at the centromere and move to opposite poles.

• Telophase – Two nuclei formed after nuclear envelopes reform around each group of chromosomes.