What properties of dna makes it possible for a probe to find a single-stranded dna target gene? A. Alleles are in pairs

B. Probes are dominant over genes

C. Chromosomes come in pairs

D. A DNA molecule has two paired strands

Astudent poured a solution of bromothymol blue indicator into three test tubes. then he placed an aquatic plant in two of the test tubes, as shown below. he placed a stopper on each test tube and placed them all in the dark for 24 hours. bromothymol blue turns from blue to yellow in the presence of co2