Dna, rna, and starch: what do these three important biomolecules have in common? a) they all contain at least one carboxyl group. b) the presence of at least one carbon-based sugar. c) the presence of strong hydrogen bonds between monomers. d) they all contain at least one amino group composed of a nitrogen atom. submit

The correct answer is -

B)The presence of at least one carbon-based sugar.

Explanation:

RNA (ribonucleic acid) and DNA (deoxyribonucleic acid) are the two types of nucleic acids that are composed of nucleotide (monomer of nucleic acid).

A nucleotide has three parts, which are pentose sugar (5 carbon sugar), nitrogenous base, and phosphate group.

Starch is a complex carbohydrate as it is composed of several units of simple sugar such as glucose.

Thus, the presence of at least one carbon-based sugar is common in DNA, RNA, and Starch.

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'