What is the role of reverse transcriptase in DNA technologies? A. To unzip DNA strands
B. To find mRNA
C. To produce proteins
O D. To make cDNA

What type of lipids are found in all biological membranes?

What adaptations can prey use to avoid predation

25) a student takes four samples of a white crystalline solid and places each in a well plate. on top of each sample, she carefully places 20 drops of clear mystery liquids a, b, c and d. her results for each well are: liquid a: the solid dissolves quickly. liquid b: the solid appears unchanged. liquid c: a brownish colored liquid is produced. liquid d: fizzing occurs and the well becomes warmer. in which well does a physical change occur?