What is a gene

• a section of DNA that codes for a trait

• a pair of pants that are made of denim

• the whole entire chromosome found in the nucleus

What is a genetic mutation

• the making of a zombie

• any change in the DNA base pairs

• the process of duplicating the DNA in a cell

A substitution mutation occurs when

• a base pair is missing from the DNA strand

• a base pair is added to the DNA strand

• a base pair is replaced with a different base pair

An insertion/additon mutation occurs when

• a base pair is missing from the DNA strand

• a base pair is added to the DNA strand

• a base pair is replaced with a different base pair

A deletion mutation occurs when

• a base pair is missing from the DNA strand

• a base pair is added to the DNA strand

• a base pair is replaced with a different base pair

A _____ is a coiled-up, condensed, or tightly wound piece of DNA

• Chromosome

• RNA

A mutation that helps an organism survive and reproduce

• harmful mutation

• helpful mutation

• neutral mutation

A mutation that decreases an organism's ability to survive and reproduce

• harmful mutation

• helpful mutation

• neutral mutation

A mutation that has NO effect on an organism's ability to survive and reproduce

• harmful mutation

• helpful mutation

• neutral mutation

The base pair adenine always pairs with which other base pair?

• thymine

• adenine

• cytosine

• guanine