1) What does every living cell have? a) Nerves b) Nucleus c) Cells d) Electrical pulses 2) What come in pairs of X and Y? a) Chromosomes b) Genes c) Cells d) DNA 3) What carry instructions from our parents? a) Chromosomes b) Cells c) Genes d) DNA 4) What are genes made of? a) DNA b) Cells c) Chromosomes d) Denim 5) DNA causes proteins to be made. What do these proteins do? a) Regulate body temperature b) Regulate hair growth c) Regulate growth d) Regulate human development

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