Back to the lesson and practice
PrintablePractice worksheet
Do it🖨️ On paper✏️ On screen
Layout1 column2 columns
Answer keyNoneAnswersWith steps
Questions10162430
LevelEasierMixedHarder
Print sizeNormalLarge print
New copyMake a new one

Free to print and copy for home or class. This link always prints the same sheet.

eurekami

Mitosis and meiosis

9th grade (Year 10 in England) · 16 questions · Common Core: NGSS.HS-LS1-4, NGSS.MS-LS3-2 · England: KS4 Combined Science: Cell biology, KS4 Combined Science: Evolution, inheritance and variation

Name

Date

Score/ 16

  1. Question 1

    Why must gametes have half the normal number of chromosomes?

    • A. So the fertilised egg has the full number again
    • B. So the baby has no chromosomes
    • C. Because they are smaller
    • D. So they can swim faster

  2. Question 2

    A bacterium divides into two every 20 minutes. Starting with one cell, how many cells are there after 1.333333 hours (if none die)?

    Answer

  3. Question 3

    Mitosis or meiosis? It makes two identical cells.

    • A. mitosis
    • B. meiosis

  4. Question 4

    Before a cell divides by mitosis, what must it do?

    • A. copy its DNA
    • B. halve its chromosomes
    • C. stop respiring
    • D. lose its nucleus

  5. Question 5

    A bacterium divides into two every 30 minutes. Starting with one cell, how many cells are there after 3 hours (if none die)?

    Answer

  6. Question 6

    Mitosis or meiosis? It makes four gametes.

    • A. mitosis
    • B. meiosis

  7. Question 7

    Before a cell divides by mitosis, what must it do?

    • A. halve its chromosomes
    • B. copy its DNA
    • C. lose its nucleus
    • D. stop respiring

  8. Question 8

    A bacterium divides into two every 20 minutes. Starting with one cell, how many cells are there after 1.666667 hours (if none die)?

    Answer

  9. Question 9

    Mitosis or meiosis? It keeps the full number of chromosomes (46 in humans).

    • A. mitosis
    • B. meiosis

  10. Question 10

    Which type of reproduction produces offspring that are genetic clones of the parent?

    • A. sexual reproduction
    • B. asexual reproduction
    • C. fertilisation
    • D. meiosis

  11. Question 11

    A bacterium divides into two every 30 minutes. Starting with one cell, how many cells are there after 3 hours (if none die)?

    Answer

  12. Question 12

    Mitosis or meiosis? It used in asexual reproduction.

    • A. mitosis
    • B. meiosis

  13. Question 13

    What is an advantage of sexual reproduction?

    • A. It produces variation, which helps a species survive changes
    • B. It needs only one parent
    • C. It makes identical offspring
    • D. It is faster than asexual reproduction

  14. Question 14

    A bacterium divides into two every 20 minutes. Starting with one cell, how many cells are there after 1.333333 hours (if none die)?

    Answer

  15. Question 15

    Mitosis or meiosis? It happens in the ovaries and testes.

    • A. mitosis
    • B. meiosis

  16. Question 16

    Which type of reproduction produces offspring that are genetic clones of the parent?

    • A. asexual reproduction
    • B. meiosis
    • C. fertilisation
    • D. sexual reproduction

All done? Color in the animal! · Free from eurekami.com/math

for the adult only

Answer key: Mitosis and meiosis

  1. 1. A. So the fertilised egg has the full number again

  2. 2. 16

  3. 3. A. mitosis

  4. 4. A. copy its DNA

  5. 5. 64

  6. 6. B. meiosis

  7. 7. B. copy its DNA

  8. 8. 32

  9. 9. A. mitosis

  10. 10. B. asexual reproduction

  11. 11. 64

  12. 12. A. mitosis

  13. 13. A. It produces variation, which helps a species survive changes

  14. 14. 16

  15. 15. B. meiosis

  16. 16. A. asexual reproduction