Name the stage of mitosis from a picture

Grade 9 Science Worksheet - Building Confidence

Circle the best answer.

1. Read this first

   Use this

   model, not to scale

2. 1.

   Ari studies a drawing of a dividing cell. Label A points to the narrow spot where the two rods of one chromosome are joined. What is A?

   • The centromere
   • The nucleolus
   • The cleavage furrow
   • The spindle
3. 2.

   Bo reads a drawing of a plant cell. Label B points to one thick rod of a chromosome. What is B?

   • A spindle fiber, a thread that pulls on the chromosome
   • A separate chromosome, with different genes from the other rod
   • A sister chromatid, an identical copy of the other rod
   • A strand of chromatin, loose DNA from the nucleus
4. 3.

   Cell drawing (model, not to scale). Esme looks at a cell in interphase. Label C points to the loose, tangled threads of DNA inside the nucleus. What is C?

   • A cell plate, a new wall between two cells
   • Condensed chromosomes, each with two chromatids
   • Chromatin, loosely packed DNA with proteins
   • Spindle fibers, threads that pull chromosomes
5. 4.

   The front of the card reads cleavage furrow. The back is blank. Kira makes a flash card for the term cleavage furrow. Which meaning belongs on the card?

   • A new wall that grows across the middle of a plant cell
   • An inward pinch that splits a plant cell in two
   • An inward pinch that splits an animal cell in two
   • The line where chromosomes sit in the middle of a cell
6. 5.

   Milo looks at drawing P of a dividing cell. Which stage of mitosis does it show?

   • Anaphase
   • Telophase
   • Metaphase
   • Prophase
7. 6.

   Noah looks at drawing P of a dividing cell. Which stage of mitosis does it show?

   • Telophase
   • Anaphase
   • Prophase
   • Metaphase
8. 7.

   “model, not to scale” Pia looks at drawing P of a dividing cell. Which stage of mitosis does it show?

   • Anaphase
   • Cytokinesis
   • Prophase
   • Telophase
9. 8.

   Cycle wheel (model, not to scale). Ren fills in a cycle wheel. Box A shows an animal cell with 4 chromosomes lined up across the middle. Which name goes in box A?

   • Cytokinesis
   • Anaphase
   • Metaphase
   • Interphase

10. Cycle wheel (model, not to scale)

    a circle cut into arcs in order: G1, S, G2, M (mitosis) and cytokinesis. The M arc is opened out into boxes in order: prophase, A, B, telophase. Box A: a plant cell with 6 chromosomes lined up across the middle. Box B: the same cell with 12 single rods in two groups of 6, one group at each end.

11. 9.

    Tala fills in a cycle wheel. In box B a plant cell has 12 single rods in two groups of 6, one group at each end. Which name goes in box B?

    • Anaphase
    • Interphase
    • Metaphase
    • Cytokinesis

12. Cycle wheel (model, not to scale)

    a circle cut into arcs in order: G1, S, G2, M (mitosis) and cytokinesis. A drawn cell sits at G2, just before M: an animal cell with one round nucleus inside a nuclear envelope. Inside the nucleus is a loose tangle of thin threads, and no X shapes are drawn.

13. 10.

    Zee labels the cell drawn at G2. Its DNA was copied in S. In what form does that DNA sit inside the nucleus?

    • semi-condensed chromatin threads
    • tightly packed, X-shaped chromosomes
    • a ring of spindle fibers
    • two daughter nuclei, one at each end