In a dna microarray experiment, fluorescently labeled are allowed to bind to known sequences on a grid.
a. rna; dna
b. dna; rna
c. rna; cdna
d. rna; rna
e. cdna; dna

Option E. "cDNA; DNA"

Explanation:

A DNA microarray is defined as an experiment used to find out the genes which is turned on or turned off in cells or tissues.

The microarray  experiment  starts with the collection of cancerous and healthy tissue samples from the patient.

The messenger RNA (mRNA) is then isolated from collected sample and is then allowed to color code with fluorescent tags.

This color coded fluorescent mRNA is allowed to make copies of DNA called complementary DNA.

This cDNA then binds to the complementary base pair present in each DNA, process known as hybridization.  Based on the complementarity the spot color visible is of green, red yellow et cetera.

Hence the correct answer is option E

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.'

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