Meiosis vs. Mitosis

If you wanted to create variation in a species, you would use

• mitosis because it's a combination of both parents' genes

• meiosis because it's a combination of both parents' genes

• mitosis because it creates identical copies of offspring

• meiosis because it creates identical copies of offspring

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Meiosis is called reduction division because

• The chromosomes divide as the cells multiply

• The chromosomes multiply as the cells multiply

• The chromosome number is reduced as the cells divide

Three samples of an organism are taken, and it is found that the DNA is the same in all three samples. So how do each of these samples perform different functions?

• They are made from different stem cells.

• The organelles in the cells are different.

• The DNA mutated and this is a mistake.

• Cells are specialized because some DNA strands are turned on and others are off.

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Non-disjunction, the failure of chromosomes to separate, can occur during which stage of cell division?

• Anaphase I

• Metaphase I

• Metaphase 2

• Prophase 1

A liverwort has 20 chromosomes after mitosis. How many chromosomes would the haploid cell have?

• 2

• 5

• 10

• 20

Which of the following would result from crossing-over?

• Deletion of amino acids in proteins

• Increased mutations in genetic material

• Increased variation in offspring

• Production of gametes that are genetically identical

A kangaroo has 8 chromosomes after meiosis. How many chromosomes does the diploid cell have?

• 32

• 16

• 8

• 4

Match the following

• Mitosis

• DNA is copied (chromosomes are duplicated), Cells grow,

• Meiosis

• One division, two daughter cells produced, daughter cells identical to parents

• Both meiosis and mitosis

• Two divisions, four daughter cells produced, daughter cells are different from parent

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Pairs of like (or similar) chromosomes are called

• Centromeres

• Chromatids

• Homologous

• Spindles

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What is the purpose of meiosis?

• To produce 2 cells for sexual reproduction

• To produce 2 cells for repairing and growing

• To produce 4 cells for sexual reproduction

• To produce 4 cells for repairing and growing