Which types of bacteria help plants make proteins? A pathogenic bacteria
B nitrogen-fixing bacteria
C vitamin K-producing bacteria
D photosynthetic bacteria

You have just sequenced a new protein found in mice and observe that sulfur-containing cysteine residues occur at regular intervals. what is the significance of this finding? it will be important to include cysteine in the diet of the mice. cysteine residues are required for the formation of α helices and β pleated sheets. cysteine residues are involved in disulfide bridges that form tertiary structure. cysteine causes bends, or angles, to occur in the tertiary structure of proteins.

What type of plant is good for a bioassay and where can i buy it? i only have a month.

Why did adult crab numbers decline in he ecosystem, even though sea stars were still available?