practice

What is the relationship between DNA and chromosomes?

• Chromosomes are made of DNA
• DNA is made of chromosomes
• DNA and chromosomes are the same thing.
• All of the above are correct

Why are your chromosomes arranged in pairs?

• Scientists have no idea
• Because you get one from your mom and one from your dad
• Because pairs can divide easier
• Because DNA is awesome

Which statement is true?

• Your DNA is the same as your siblings.
• Your set of DNA is identical to your mothers.
• Your set of DNA is identical to your fathers.
• Your DNA is unique to you.

Besides genetics, what other factors are responsible for how you will grow and develop?

• How people treat you
• How hard you study
• Nutrition and environment
• What your parents look like

Which of your body cells contain DNA?

• Only your reproductive cells, like egg or sperm
• Only your blood cells
• Only your bone cells
• Most all of the cells in your body

DNA can best be described as 

• The bricks of a building
• A cookbook of recipes
• People living in a community 
• The energy plant that fuels a city

Which trait is completely determined by your DNA?

• Your personality
• Your intelligence
• Your natural hair color
• Your weight

Put in order smallest to largest:

• Chromosome - DNA - Gene
• Gene - DNA - Chromosome 
• DNA - Gene  Chromosome
• Chromosome - Gene  - DNA

Which is true about DNA?

• Only animals have DNA in their cells
• DNA research is simple and quick
• DNA contains many genes
• None of the above are true.

Inherited traits are controlled by 

• genetic information in the genes
• the environment a baby is born into
• the nucleus and mitochondria
• none of the above