When blood droplets strike a surface, the shape of the stain changes depending on the angle of impact, velocity, distance travelled

and type of surface impacted. Often at angles , a distinctive exclamation point stain results.

A)

<10°

<400

<90°

>450

Draw the structure of dna nucleotide with adenine as nitrogenous base

The negative impacts of nonnative species generally outweigh the positive impacts

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.