Mitosis vs. Meiosis

As a multicellular organism grows, its increased size is due to:

• cells increasing in size.

• cells completing cell division.

• stretching of cells.

• shrinking of cells.

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What is one purpose of cell division?

• Repairing DNA strands.

• Replacing damaged cells.

• Repairing damaged cells.

• Producing smaller cells.

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Which is the best example of cell division replacing damaged/worn out cells?

• Gametes dividing.

• Reproductive cells dividing.

• Sperm or egg cells dividing.

• Skin cells dividing.

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What can happen when cell division goes wrong and the DNA is not replicated/copied exactly.

• Genetic disorders (mutations in DNA).

• Growth of multi-cellular organisms.

• Replacement of damaged cells.

• Reproduction of organisms.

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What is true of the process of mitosis?

• It occurs to replicate (copy) identical cells.

• It occurs in male and female reproductive cells.

• It occurs in nerve cells.

• It occurs when half the DNA is distributed to each of the daughter cells.

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How many chromosomes would a cell in the human body have if it completed mitosis

• Half the number of chromosomes.

• Double the number of chromosomes.

• The identical number of chromosomes.

• No chromosomes.

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Which of the following is the result of meiosis?

• It occurs to grow hair as new cells are added.

• It occurs to create new skin underneath a scab.

• It occurs to create gametes, or reproductive cells.

• It occurs to create bone cells as children grow.

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Goats have 60 chromosomes in their cells. A cell in a goat undergoes meiosis in the reproductive organs. How many chromosomes will be present in these new daughter cells.

• 30 chromosomes.

• 60 chromosomes.

• 90 chromosomes.

• 120 chromosomes.

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In Meiosis, the first division involves copying of the DNA, In the second division of Meiosis, the DNA splits in half. Why is this an important part of reproduction?

• It takes half the chromosomes to produce skin cells.

• It helps to insure that each parent contributes half the genetic material to the offspring.

• Half the chromosomes will reproduce in cells slower.

• Too many chromosomes can produce too many cells.

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How many times do the cells divide in Meiosis?

• Only once.

• Twice.

• Three times.

• Four times.