Exploring DNA, Chromosomes, and Genes in Reproductive Biology

What is the primary function of DNA in cells?

• To protect the cell

• To code for characteristics of a species

• To provide energy

• To transport nutrients

How is DNA organized within a cell?

• As lipids

• As proteins

• As chromosomes

• As free-floating molecules

How many chromosomes do humans have?

• 44

• 22

• 46

• 23

From whom do you inherit your chromosomes?

• From neither parent

• From both your mother and father

• Only from your father

• Only from your mother

What happens during sexual reproduction?

• Egg and sperm do not carry chromosomes

• Egg and sperm carry double copies of chromosomes

• Egg and sperm carry random numbers of chromosomes

• Egg and sperm carry single copies of chromosomes

What is a gene?

• A specific segment of DNA that codes for a trait

• A type of cell

• A protein

• A type of chromosome

Where is the gene that controls eye color located?

• Chromosome 2

• Chromosome 15

• Chromosome 1

• Chromosome 22

Which chromosome contains the gene that codes for insulin?

• Chromosome 2

• Chromosome 1

• Chromosome 15

• Chromosome 22

Do all cells in your body use the same parts of DNA?

• Only brain cells use different parts

• No, different cells use different parts

• Yes, all cells use the same parts

• Only muscle cells use different parts

What determines the traits that make each of us unique?

• Inherited chromosomes and genes

• Diet and exercise

• Random chance

• Environmental factors