BIO.3C.1 DNA and Heredity [video]

What is the role of DNA in living organisms?

• C. It regulates gene expression

• B. It codes for traits and proteins

• A. It determines eye color

• D. It protects the body

How many types of bases are there in DNA?

• D. 5

• B. 3

• C. 4

• A. 2

What is the mnemonic to remember the pairing of DNA bases?

• B. Apples in the garden, car in the driveway

• A. Apples in the tree, car in the garage

• C. Apples in the park, car in the street

• D. Apples in the forest, car in the parking lot

What is the structure of DNA called?

• A. Single-helix

• C. Double-helix

• B. Triple-helix

• D. Quadruple-helix

How many chromosomes do humans have?

• A. 23

• D. 92

• B. 46

• C. 64

What is the function of genes in DNA?

• D. They determine eye color

• A. They regulate gene expression

• C. They protect the body

• B. They code for proteins and traits

What is the purpose of gene regulation?

• A. To determine eye color

• B. To code for proteins

• D. To protect the body

• C. To turn genes on or off

How many chromosomes do human sperm and egg cells contain?

• C. 64

• B. 46

• D. 92

• A. 23