Genes, DNA and Chromosomes Review

How many pairs of chromosomes do humans normally have in each cell?

• 46 pairs

• 22 pairs

• 23 pairs

• 24 pairs

What is the shape of DNA?

• Single helix

• Circular

• Double helix

• Triple helix

What are the four bases of DNA?

• Adenine, Guanine, Cytosine, Thymine

• Adenine, Guanine, Cytosine, Uracil

• Adenine, Guanine, Cytosine, Ribose

• Adenine, Guanine, Cytosine, Deoxyribose

What determines the function of a protein in the body?

• The size and shape of the protein

• The size of the cell

• The number of chromosomes

• The shape of the DNA

What role do genes play in determining an organism's characteristics?

• They determine traits like hair color, eye color, and more

• They have no role

• They determine skin color only

• They determine cell size