Monomeric proteins do not have a. primary structure b. secondary structure c. tertiary structure d. quaternary structure

Quaternary structure

Explanation:

The proteins exists in all the structures such as primary, secondary and tertiary. The primary structure of the protein is simple, secondary is made of two sheets like structure.

The tertiary structure of the proteins is made of beta pleated structure. The monomeric proteins do not form quaternary structure. It is reserved for proteins having two or more polypeptide chains.

Hence the correct answer is Option D

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.'