Cell Division and Heredity Test

What is the smallest structural and functional unit of an organism?

• Tissue

• Organ

• Cell

• Molecule

How many chromosomes do human cells contain?

• 23

• 46

• 92

• 44

What is chromatin?

• A) A structure in a chromosome that holds the two chromatids together

• B) Two identical copies of a chromatid

• C) Unwound DNA

• D) Tightly packed DNA found only during cell division

What is the role of spindle fibers during mitosis?

• They control the movement and separation of chromosomes.

• They help in the formation of the nuclear envelope.

• They separate the nucleus from the cytoplasm.

• They disappear during mitosis.

What is mitosis used for?

• Sexual reproduction

• Cell growth

• Producing spores

• Mating

What is the first phase of mitosis called?

• Anaphase

• Telophase

• Prophase

• Metaphase

What is the second phase of mitosis where the chromosomes line up in the middle of the cell?

• Anaphase

• Prophase

• Metaphase

• Telophase

What is the third phase of mitosis called?

• Prophase

• Metaphase

• Anaphase

• Telophase

What is the last stage of mitosis called?

• Anaphase

• Metaphase

• Telophase

• Prophase

How many daughter cells are produced at the end of mitosis?

• One

• Two

• Three

• Four