Rna and proteins combine in cells to form structures called ribosomes. ribosomes contain the enzyme active site for peptide bond formation. based on their chemical structures, do you think protein or rna molecules actually form the active site within the ribosome?

a) it could be either, because both molecules have catalytic properties.
b) protein, because only proteins can catalyze a reaction that involves another protein
c) rna, because proteins cannot catalyze a reaction that involves another protein
d) protein, because rna cannot catalyze reactions

According to this food web which of the following would be considered primary consumers

What would happen if the tubing with the yellow band was placed in a beaker of distilled water?

Suppose a particular species of tulip plant has three alleles for the gene that codes for flower color. the cr allele produces red tulips, the cp allele produces purple tulips, and the cw allele produces white tulips. cr is dominant over cp and cw, and cp is dominant over cw. for each of the following crosses, determine the expected ratio of offspring for each flower color. cr cp x cp cw cr cw x cp cw 1 red: 1 purple : 0 white, 1 red: 2 purple: 1 white, 2 red: 1 purple 1 white, 1 red: 3 purple : 0 white, 2 red: 0 purple : 2 white, 2 red: 2 purple : 0 white