Mitosis and Meiosis - Unit 7

Genes are short segments of DNA and are located in the ________ of a cell.

• mitochondria

• chromosomes

• genes

• cells

What is the process by which the number of chromosomes is reduced by half to form sex cells.

• fertilization
• meiosis
• mitosis
• budding

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Fertilization is an important step in animal reproduction. What happens during fertilization?

• Chromosomes separate into single strands.
• An egg cell joins with a sperm cell.
• An organism divides itself into 2 parts.
• A cell goes through a series of divisions.

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The process by which a cell creates an exact copy of itself, allowing an organism to grow is know as:

• fertilization

• meiosis

• mitosis

• budding

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What is mitosis?

• How cells combine.
• How cells stop working.
• How cells reproduce.
• How cells reproduce sexually.

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What are genes?

• Segments of DNA that code for physical characteristics.
• The organelle that directs all of the cell's activities.
• Characteristics that parents teach their offspring.
• Sex cells: sperm and egg.

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How does your body grow as you get older?

• Your cells fill with water and get bigger.
• You cells divide, producing new cells.
• Your cells stretch and get longer.
• Your cells combine with one another.

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When sex cells combine to produce offspring, each sex cell will contribute

• 1/4 the number of chromosomes in body cells
• 1/2 the number of chromosomes in body cells.
• the normal number of chromosomes in body cells.
• twice the number of chromosomes in body cells.

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In mitosis, how does the number of chromosomes in a daughter cell compare to the number of chromosomes in a parent cell?

• The daughter cell has 1/2 the number of chromosomes.
• The daughter cell has twice with number of chromosomes.
• The daughter cell has the exact same number of chromosomes.
• The daughter cell has 1/4 the number of chromosomes.

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How does a sperm or egg cell differ from all other cells in your body?

• Sperm and egg cells contain only 1/2 the number of chromosomes as the other cells.
• Sperm and egg cells contain twice the number of chromosomes as the other cells.
• Sperm and egg cells reproduce through mitosis; the other cell's don't.
• Sperm and egg cells contain no chromosomes.

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