Answered

Q36. Is there always be an equal number of adenine and thymine nucleotides in molecule? Why?Q37. Is there always going to be an equal number of guanine and cytosine nucleotides in a molecule? Why?Q38. The side of the ladder are made up of alternating ______ and _______ molecules. The steps (or rungs) of the ladder are made up of ______ held together by hydrogen bonds.

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Since adenine is paired with thymine their number will be always equal.

Guanine and cytosine will be also equal in number because they are also a pair.

the side of the ladder are made of alternating sugar and phosphate molecules. while the steps are made base pairs.