'This type of "pair", such as guanine-cytosine, forms a rung on the DNA ladder'
a base pair
IT'S GENETIC: This type of pair, such as guanine-cytosine, forms a rung on the DNA ladder
This type of "pair", such as guanine-cytosine, forms a rung on the DNA ladder
This type of "pair", such as guanine-cytosine, forms a rung on the DNA ladder
IT'S GENETIC
a base pair
IT'S GENETIC