An organism’s underlying genetic makeup, consisting of both physically visible and non-expressed alleles, is called its genotype

Postzygotic barriers are reproductive isolation mechanisms that occur after zygote formation

Plant cells have a plasma membrane

Macroevolution refers to broader scale evolutionary changes that scientists see over paleontological time

A distinguishing characteristic about eukaryotic cells is that they have membrane bound organelles

Translation is when the genetic code in RNA is translated into a specific sequence of amino acids and, ultimately, different proteins

A gametic barrier is a type of prezygotic barrier that occurs when closely related individuals of different species mate, but differences in their gametes prevent fertilization from taking place

DNA is a double stranded, helical molecule 

Somatic cells are body cells; all the cells that aren’t gametes

A codon is three consecutive nucleotides in an mRNA strand that specify the insertion of an amino acid or the release of a polypeptide chain during translation