True or False?

Question

both purine and pyrimidine bases are heterocyclic aliphatic ring structures - true or false?

sugars are good examples of molecules containing the amine group - true or false?

DNA, protein and ester formation always involve a condensation type of reaction - true or false?

in nucleic acids, carbon 4 of the pentose sugar is attatched to an organic nitrogenous base - true or false?

Amino acid monomers are the building blocks of polymeric DNA molecules - true or false?

Geometric (stereo) isomes exist in both cis and trans form - true or false?

All aliphatic hydrocarbons are based on the benzene molecule - true or false?

Answer 1

a) false there are delocalzed electrons in cycles
b) false no amine
c)i would say yes but not sure
d) no
e) amino acids are blocks of peptides or protein false
f) iwould say true but not sure
g)benzene molecule is not an aliphatic molecule false