Exploring Genes, DNA, and Chromosomes

Why do we resemble our parents?

• Because we live in the same house

• Because we eat the same food

• Because we inherit genes from them

• Because we share the same environment

What is DNA often compared to?

• A recipe book

• A map

• A novel

• An instruction manual

How much of a chimpanzee's DNA matches with human DNA?

• 50%

• 100%

• 75%

• 99%

Where does the instruction manual (DNA) come from?

• Our parents

• Our diet

• Our friends

• Our environment

What happens to DNA just before a cell divides?

• It disappears

• It gets copied

• It changes color

• It shrinks

What are chromosomes?

• Coiled up versions of DNA

• Cells

• Genes

• Proteins

What do genes carry instructions for?

• Building specific proteins

• Creating energy

• Digesting food

• Breathing

What determines the color of our eyes?

• The amount of light

• The type of food we eat

• The air quality

• The proteins made by specific genes

How many chromosomes do human cells have?

• 69

• 23

• 92

• 46

What is the main advantage of sexual reproduction over asexual reproduction?

• It requires less energy

• It leads to genetic diversity

• It creates more offspring

• It is faster