Fill in the Blank - Before a cell divides, an BLANK copy of its DNA is made.

True or False? A chromosome has exactly one hundred genes on it.

What are the reproductive cells called?

Fill in the blank - Many BLANK are harmful because they decrease an organisms chances for survival.

What kind of trait? The color of a wolf's fur can change with the change of seasons. a. inherited trait b. learned behavior c. manipulated trait d. environmental trait

What does a molecule of DNA resemble? a fireman's pole or a twisted ladder

What kind of trait? A child can ride a bicycle after lots of practice. a. inherited trait b. learned behavior c. manipulated trait d. environmental trait

Multiple choice - This is the process through which traits are passed from parent to offspring. (inherited traits, heredity, learned behaviors)

How many chromosomes do normal human cells have?

What do we call the central region that hold the chromatids together?

What kind of trait? People can pierce their ears or dye their hair. a. inherited trait b. learned behavior c. manipulated trait d. environmental trait

What do we call tightly coiled, double strands of DNA?