Pearson 12.4 Chromosomes and Inheritance Quiz 5-9-17

Sutton realized that paired alleles were carried on paired chromosomes. This came to be known as the what?

• Theory of cells
• Theory of genetics
• Chromosomes theory of inheritance
• Theory of traits

What is an advantage of sexual reproduction?

• Allows genetic variation
• Only needs one parent
• Happens very quickly
• Offspring are exact copies of parent

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Organisms that reproduce asexually generally have offspring that are 

• unicellular. 
• multicellular. 
• genetically varied. 
• genetically identical. 

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Meiosis involves this many divisions of the nucleus.

• 1
• 2
• 3
• 4

Meiosis produces

• sex cells 
• clone cells
• prison cells 
• blood cells

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Each chromosome contains two identical

• chromatids
• nuclei
• daughter cells
• cycles

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Body cells of humans have ___ PAIRS of chromosomes

• 46
• 23
• 24
• 12

After meiosis, sex cells have ___ number of chromosomes as body cells

• the same
• half of the 
• a quarter of the
• more than the

Genes are passed from parents to offspring on 

• DNA
• duplicated genes
• chromosomes
• little boats

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Chromosomes split into chromatids in the ____ division of meiosis

• first
• second
• third
• fourth

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