Ayoung patient is diagnosed with the genetic disorder lactose intolerance, which results in the inability to digest milk products due to a missing enzyme called lactase. what is most likely the cause of lactose intolerance in this patient?

a. the patient is allergic to milk.

b. the patient stopped consuming milk products.

c. a disease destroyed the lining of the patient’s small intestine.

d. a mutation occurred in the gene that is responsible for producing lactase.

the answer is d (apex) good luck : ))

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.'