Genetics Quiz - Biology 7th

What does genetics study?

• Genetics studies heredity and variation in living organisms.
• Genetics studies the behavior of animals.
• Genetics studies the weather patterns.
• Genetics studies the chemical composition of rocks.

DNA carries instructions for our body.

• True

• False

What do genes do?

• Determine traits

• Create new species
  

• Change food color

• Determine the color of the sky.

Everyone has the same genes.

• True

• False

How many chromosomes do humans have?

• 10

• 23

• 46

• 100

Chromosomes are made of DNA.

• True

• False

Which bases pair together?

• A with G, C with T

• A with T, G with C

The four DNA bases are A, T, G, and C.

• True

• False

What is the difference between genotype and phenotype?

• Only genotype affects traits

• Genotype is inherited, phenotype is visible

Which of the following is an example of a recessive trait?

• Brown eyes

• Blue eyes

• Curly hair