Which ingredients in macconkey agar supplies nitrogen?

Which of the following is not a type of epithelial cell

If garbage is left on the street flies in microbes can arise from nothing to feed on it true or false

Dna in the nucleus carries the genetic code for making proteins in ribosomes. the diagram shows a model of dna. which part of the dna molecule codes for the amino acid sequence in the protein? a) sugar b) phosphate c) deoxyribosed) nitrogen bases