Exploring the Basics of Genetics and Heredity

What is the basic unit of life?

• Chromosome

• DNA

• Cell

• Nucleus

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What does the nucleus contain?

• DNA

• RNA

• Proteins

• Enzymes

What are the rungs of the DNA ladder made of?

• Adenine, Thymine, Cytosine, Guanine

• Ribose, Phosphate

• Proteins, Enzymes

• Chromosomes, Genes

How many pairs of chromosomes do humans have?

• 22

• 24

• 25

• 23

What is the sum of all your genetic material called?

• Chromosome

• Nucleus

• Gene

• Genome

How often does DNA make an error per billion letters copied?

• Three times

• Twice

• Once

• Four times

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What do most mutations in DNA result in?

• Severe diseases

• Ignored by the body

• Enhanced abilities

• Immediate death

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What do genes provide instructions for making?

• Vitamins

• Proteins

• Lipids

• Carbohydrates

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What type of proteins speed up chemical reactions?

• Enzymes

• Antibiotics

• Chromosomes

• Hormones

What percentage of DNA do all humans share?

• 100%

• 99.9%

• 99.7%

• 99.5%

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