A population of cells was exposed to UV radiation for 10 minutes. A sample of the mutagenized cells was plated on complete media, and 200 colonies formed. These 200 colonies were replica plated to minimal media, and 17 colonies grew. When the 200 colonies were replica plated to complete media missing biotin, only 40 colonies grew. What was the biotin mutation rate in this experiment

What feature of cell theory is best demonstrated in the image

Put the following processes of protein synthesis in the correct order: - dna strands unwind and separate - mrna copies dna according to complimentary base pairing - trna's anticodons bring amino acids to the corresponding mrna codons - amino acids bind to each other making a protein - mrna leaves the nucleus - a stop codon is reached, the newly formed protein is released to go do its job for the cell

Are the layers of rock above and below the coal older or younger?